Neutron Stars in Lisbon, Portugal

Neutron stars represent unique laboratories to test physics under extreme conditions, hardly reproducible with terrestrial experiment. As isolated and binary sources, they provide the essential link between gravity in the strong field regime, the state of matter at supra-nuclear densities and high energy astrophysical phenomena. The first discovery of gravitational waves emitted by two merging neutron stars has also marked the dawn of the multi-messenger astronomy. The future after GW170817 is rich of promising opportunities that will shed new light on old problems and will raise, at the same time, further questions to be addressed.

The aim of this workshop is to bring together scientists working on different aspects of relativistic astrophysics related to neutron stars, to discuss the status and the future directions of the field.

The scientific program of the conference will include the following topics:

– Numerical and analytical modelling of binary neutron star mergers
– Phases of dense nuclear matter
– Extraction of the stellar equation of state from gravitational and electromagnetic observations
– Connection between binary mergers and gamma ray bursts
– Multi-messenger astrophysics

The workshop is organized in order to have few talks each day, and maximize the time for round tables and free discussions.

List of invited speakers

Andreas Bauswein (HITS, Germany)
Christopher Berry (University of Birmingham, UK)
Francesco Pannarale (Cardiff University, Wales)
George Pappas (Sapienza University of Rome, Italy)
Kostas Glampedakis (University of Murcia, Spain)
Paolo Pani (Sapienza University of Rome, Italy)
Paulo Freire (MPI for Radio Astronomy, Germany)
Riccardo Ciolfi (INAF-OAPd, Italy)
Samaya Nissanke (Radboud University, Netherlands)
Sebastiano Bernuzzi (Parma University, Italy)
Stephen Rosswog (Stockholm University, Sweden)
Tanja Hinderer (Radboud University, Netherlands)

The workshop is funded by the European COST action CA16214 PHAROS : “The multi-messenger physics and astrophysics of neutron stars”.

For people interested to participate, please send a mail to andrea.maselli[AT]tecnico.ulisboa.pt

Looking forward to seeing you in Lisbon,

Andrea Maselli, Vitor Cardoso, Jose Lemos

Reduced order modeling for gravitational waves, Potsdam, Germany

Dear Colleagues,

We are pleased to announce a workshop on Reduced order modeling for gravitational waves which will take place at AEI Potsdam, June 18-22, 2018.

ROM GW workshop

Registration for the workshop is now open. We have arranged for hotel block reservations for 30 participants in Potsdam or Berlin; a small number of rooms is available at the Golm campus guesthouse. Attendees are encouraged to register early.

Reduced order modeling (ROM) is a collection of techniques for accelerating the evaluation of parametrized models of the gravitational waveform, e.g. the GWs emitted by compact binary coalescences. The workshop focuses on introducing non-experts to established ROM techniques and building new models (with a view towards LIGO/Virgo’s upcoming observing runs). There is also dedicated time for experts to get together and discuss how to advance current techniques for frontier problems.

The first half of the workshop will feature introductory talks and Jupyter notebook tutorials demonstrating data-driven gravitational waveform modeling techniques and some intermediate material. This will include reduced basis, specialized interpolation, reduced order quadratures, and parameter selection techniques that have proven useful for building GW ROMs. We will discuss new, promising methodologies such as machine learning and Gaussian process regression. In the second half of the workshop, we will split up into smaller groups to work on problems of interest brought forward by participants. We also anticipate having one or more sessions for submitted talks.

We look forward to seeing you in Potsdam,

— Michael Puerrer and Scott Field

PhD position in Theoretical Cosmology, Madrid, Spain

The Institute of Theoretical Physics IFT UAM-CSIC in Madrid (Spain) is offering a PhD position in theoretical cosmology

The position will have a duration of 3 years and is funded by an “Atraccion de Talento Investigador” grant awarded by the regional government of Madrid to Dr. Guillermo Ballesteros. An eventual extension of the position to a fourth year will be subject to the availability of funding.

The position should begin in autumn 2018, although the starting date is flexible. Candidates interested in topics such as inflation, dark energy, dark matter and wanting to work at the interface between cosmology and particle physics are encouraged to apply. They must hold an M. Sc. (or an equivalent degree) by their intended starting date.

Applications (in PDF format) can be sent by e-mail to guillermo.ballesteros[AT]uam.es with the subject “PhD-IFT-MAD Application”. They must contain: a curriculum vitae, a transcript of academic records and a brief statement of motivation, research interests and previous research experience. Two reference letters should be sent separately to the same e-mail address, with the subject “PhD-IFT-MAD Reference + name of the applicant”.

Review of applications will start around the 5th of April, but applications that arrive after this date will also be considered.

Candidates who have recently applied for a SO(IFT) PhD position do not need to send their materials again, but should write an e-mail indicating their interest in this new position.

Knowledge of Spanish language is not needed, but a good command of English is required.

Enquires about the position can be sent to guillermo.ballesteros[AT]uam.es

Information Universe Conference, Groningen, The Netherlands

The key topic of the IU conference series is: “What is the role of information in the Universe and its description?”. In an epoch where scientists need to handle Big Data and simulations, find highly organized systems in nature and grapple with the role of information in physics and other sciences, this appears to be one of the more fundamental questions that needs to be answered in order to understand the world around us. The Information Universe conference intends to unite various approaches, addressing the fundamental role of information both in nature (in vivo) and in data analysis, theory and computer modelling (in vitro).

The conference will approach the key role of information from the point of view of several disciplines: e.g. cosmology, physics, mathematics, life sciences, computer science (including quantum computing) and neuroscience. The deeper role of information is formulated in different ways by these various disciplines, leading to a multitude of fundamental questions such as:

– Is there a deeper physical description of space-time and gravity based on information?
– The Big Data Universe and our Universe: are our numerical simulations and Big Data repositories (in vitro) different from real natural system (in vivo)?
– Will quantum systems dominate the future of computing?
– What is the role of information in highly organized complex life systems and genetics?
– What will be the role of machine learning in the future of science?
– How will big datasets from new experiments, such as Euclid, help us in understanding fundamental cosmological problems: dark matter, dark energy, inflation and structure formation?
– Is the universe one big information processing machine, a hologram, one of many?

The conference will be held in the new 260 seats planetarium theatre in Groningen, which provides an inspiring immersive 3D full dome display, e.g. numerical simulations of the formation of our Universe, and anything else our presenters wish to bring in. The digital planetarium setting will be used to visualize the theme with modern media.

7th Belgian-Dutch Gravitational Waves Meeting, Groningen, The Netherlands

The 7th Belgian-Dutch Gravitational Waves Meeting will be hosted by the Van Swinderen Institute for Particle Physics and Gravity at the University of Groningen. This event aims to bring together astronomers and physicists interested in gravitational wave science and inform each other of developments and new projects.

The meeting will start at 10:30am with a keynote lecture. In addition, there will be overview talks on general topics/experiments as well as contributed talks on specific projects, particularly by students and postdocs. The day will be closed with drinks and snacks.

This meeting is open to all interested researchers, also from outside the Netherlands and Belgium.

Master Program in Mathematical Physics, Dijon, France

The Department of Mathematics of the Universite’ de Bourgogne (Dijon, France) offers a master’s degree in Mathematical Physics. The objectives of the two-year program in mathematical physics are, within a mathematics curriculum, to provide the students with knowledge of the advanced mathematical methods of modern theoretical physics.

The program develops mathematical methods used in a wide range of topics in theoretical physics, such as quantum field theory, statistical mechanics, general relativity, gauge theories, string theory, etc. The coursework will cover different fields of mathematics (algebra, geometry, analysis) and will highlight their applications to the problems of contemporary theoretical physics.

The student will be integrated from the very beginning into the mathematical physics group of the IMB (Institut de Mathematiques de Bourgogne), and are expected to write a master’s thesis during the second year.

All the lectures will be given in English.

A limited number of fellowships is available.

Faculty search in Gravitational-Wave Astronomy, Birmingham, UK

The School of Physics and Astronomy and Institute of Gravitational Wave Astronomy at the University of Birmingham invite applications for multiple permanent faculty openings in gravitational-wave astronomy at the Lecturer / Senior Lecturer level.

Applications from top researchers in all areas related to gravitational-wave astronomy, including instrumentation, quantum measurement, data analysis, astrostatistics, astronomical observations, astrophysics theory and general relativity are encouraged.

Full details can be found at: http://www.birmingham.ac.uk/staff/jobs/index.aspx . Use post number 58513 to search current vacancies.

Candidates should apply online at the link above and arrange for three letters of reference to be sent by the closing date to:

Mrs Joanne Cox
School of Physics and Astronomy
University of Birmingham
Edgbaston B15 2TT
United Kingdom
E-mail: j.s.cox [at] bham.ac.uk

For further information and informal enquiries please contact:
Prof Alberto Vecchio (av [at] star.sr.bham.ac.uk).

The application deadline is 15 March 2018.

Further information about the Institute of Gravitational Wave Astronomy and the School of Physics and Astronomy can be found at http://www.birmingham.ac.uk/gravitational-waves and https://www.birmingham.ac.uk/schools/physics.

COST GWverse: Exchange of researchers working on gravitational-wave and black hole physics

In the context of the European COST Action CA16104 on Gravitational waves, black holes and fundamental physics (GWverse), grants for short term scientific missions (STSMs) are available. We are inviting you to submit proposals for STMSs starting after May 1, 2018 and ending before Nov 30, 2018 (applications outside this timeframe will be discarded).

This call starts on Feb 15 and closes Mar 30, 2018. All proposals will be reviewed and the results will be announced by Apr 15, 2018.

The selection committee will take into account the geographical distribution of host and home institution, matching of funds by the host, the scientific proposal and the experience of the applicant (preference is given to Early Career Investigators).

Successful applicants will be expected to join as members of one (or more) of the Action’s Working Groups. STSM recipients should acknowledge the COST Action in any publication or talks, through the use of the COST logo and the statement “The authors would like to acknowledge networking support by the COST Action GWverse CA16104”.

STSMs are a great opportunity for all scientists within the COST Action to exchange visits, nurture collaborations, or develop new ones. Further details are available at the GWverse webpage: https://gwverse.tecnico.ulisboa.pt/stsms/
If you have any question, please contact the STSM Coordinator Andreja Gomboc: andreja.gomboc[at]ung.si

The Sixteenth Release of the Einstein Toolkit

We are pleased to announce the sixteenth release (code name “Tesla”) of the Einstein Toolkit, an open, community developed software infrastructure for relativistic astrophysics. The highlights of this release are:

* A new thorn, Hydro_RNSID which models a rotating neutron star.

* Tutorials have been updated and the install process for new users has been simplified.

In addition, bug fixes accumulated since the previous release in June 2017 have been included.

The Einstein Toolkit is a collection of software components and tools for simulating and analyzing general relativistic astrophysical systems that builds on numerous software efforts in the numerical relativity community including CactusEinstein, the Carpet AMR infrastructure and the relativistic magneto-hydrodynamics code GRHydro. For parts of the toolkit, the Cactus Framework is used as the underlying computational infrastructure providing large-scale parallelization, general computational components, and a model for collaborative, portable code development. The toolkit includes modules to build complete codes for simulating black hole spacetimes as well as systems governed by relativistic magneto-hydrodynamics.

The Einstein Toolkit uses a distributed software model and its different modules are developed, distributed, and supported either by the core team of Einstein Toolkit Maintainers, or by individual groups. Where modules are provided by external groups, the Einstein Toolkit Maintainers provide quality control for modules for inclusion in the toolkit and help coordinate support. The Einstein Toolkit Maintainers currently involve postdocs and faculty from six different institutions, and host weekly meetings that are open for anyone to join in.

Guiding principles for the design and implementation of the toolkit include: open, community-driven software development; well thought out and stable interfaces; separation of physics software from computational science infrastructure; provision of complete working production code; training and education for a new generation of researchers.

For more information about using or contributing to the Einstein Toolkit, or to join the Einstein Toolkit Consortium, please visit our web pages at http://einsteintoolkit.org.

The Einstein Toolkit is primarily supported by NSF 1550551/1550461/1550436/1550514 (Einstein Toolkit Community Integration and
Data Exploration).

The Einstein Toolkit contains about 200 regression test cases. On a large portion of the tested machines, almost all of these tests pass, using both MPI and OpenMP parallelization.

The changes between this and the previous release include:

=== Larger changes since last release ===

* The support for generic machines is more robust, and the ET should compile, run, and pass the test suites out of the box on new Linux machines.

* A Jupyter-based Tutorial (https://einsteintoolkit.org/documentation/new-user-tutorial) is now available.

* The AVX512 instruction set used on the Intel “Knight’s Landing” platform is now supported.

* PITTNullCode now has test outputs

* EOS_Omni polytrope supports hybrid equations of date with up to 10 pieces

=== New thorns or tools ===

* The Hydro_RNSID thorn which provides initial data for a rotating neutron star.

=== Upcoming changes for the next releases ===

* New thorns:

* GiRaFFE, which models plasma flows in a dynamic spacetime

* Changes to WVUThorns_Diagnostics

* Seed_Magnetic_Fields-modified: Extended Seed_Magnetic_Fields thorn for binary neutron stars. Supercedes Seed_Magnetic_Fields thorn.
* Meudon_Bin_NS-modified: Modifications to Meudon BNS initial data thorn to disable the overwriting of initial lapse/shift, which acts to significantly reduce coordinate eccentricity. Supercedes Meudon_Bin_NS thorn.
* VolumeIntegrals_GRMHD-new: Performs volume integrals on arbitrary “Swiss-cheese”-like topologies, and even interoperates with Carpet to track NS centers of mass.
* VolumeIntegrals_vacuum-new: Ensures that VI_vacuum can be used without enabling a GRMHD code.
* particle_tracerET-new: Solves the ODE D_t xi = vi for typically thousands of tracer particles, using an RK4 integration atop the current timestepping.
* smallbPoynET-new: Computes b^i, b^2, and three spatial components of Poynting flux. It also computes (-1-u0), which is useful for tracking unbound matter

=== How to upgrade from Hack (ET_2017_06) ===

To upgrade from the previous release, use GetComponents with the new thornlist to check out the new version.

See the Download page (http://einsteintoolkit.org/download/) on the Einstein Toolkit website for download instructions.

=== Machine notes ===

Supported (tested) machines include:

– Default Debian, Ubuntu, Fedora, CentOS, Mint, OpenSUSE and MacOS (Homebrew and MacPorts) installations
– Bluewaters
– Comet
– Cori
– Draco
– Edison
– Golub
– Hydra
– Marconi
– Minerva
– Queenbee 2
– Stampede 2
– SuperMIC
– Wheeler

* TACC machines: defs.local.ini needs to have sourcebasedir = $WORK and basedir = $SCRATCH/simulations configured for this machine. You need to determine $WORK and $SCRATCH by logging in to the machine.

* A new configuration for KNL nodes is being worked on, but not yet included in the release (but compilation works and tests mostly pass).

All repositories participating in this release carry a branch ET_2018_02 marking this release. These release branches will be updated if severe errors are found.

The “Tesla” Release Team on behalf of the Einstein Toolkit Consortium (2018-02-15)

Steven R. Brandt
Peter Diener
Roland Haas
Ian Hinder

Feb, 2018

Quantum fields, scattering and spacetime horizons: mathematical challenges, Les Houches, France

The mathematical developments in Quantum Field Theory on curved spacetimes provide an exceptional testing ground for concepts at the interface of General Relativity and quantum physics. The aim of this meeting is to bring together expert mathematicians and theoretical physicists with the goal of addressing challenging problems in the description of phenomena where asymptotic or global aspects play a crucial role, and of exploring the various connections with recent advances in scattering theory, conformal methods and microlocal analysis.

Relativistic Quantum Information North 2018, Vienna, Austria

Relativistic Quantum Information (RQI) is a recently-born research field addressing questions at the interplay of quantum information and relativistic physics. On the one hand, RQI aims to extend the applicability of quantum information to regimes in which relativistic effects become relevant. On the other hand, it uses information-related ideas to investigate the fundamental structure of spacetime. RQI is a multidisciplinary research field with far-reaching objectives, going from future large-scale quantum technologies to the understanding of gravity and spacetime at the quantum level.

The Relativistic Quantum Information – North 2018 Conference at the University of Vienna is held under the auspices of the International Society for Relativistic Quantum Information and is the ninth in the series of such meetings taking place in the Northern Hemisphere. This workshop series aims to bring together researchers working across quantum information science, quantum field theory in curved spacetime, and quantum gravity.

Searching for continuous gravitational waves: PhD and postdoc positions available, Hannover, Germany

The Max Planck Institute for Gravitational Physics (Albert Einstein Institute, AEI) is a leading research institute in the world specializing in gravitational physics. Around 200 international scientists work at the research labs and offices located in Potsdam-Golm and Hannover, Germany. The working language is English.

The Albert Einstein Institute in Hannover plays a central role in the analysis and interpretation of the ground-breaking observations of gravitational waves. More information can be found at https://www.aei.mpg.de/18636/05_Observational_Relativity_and_Cosmology and https://www.aei.mpg.de/24934/04_Continuous_Waves. The institute prides itself of a very lively environment and world-class computing facilities.

We are inviting applications for outstanding Post-Docs and graduate students (Ph.D. students) interested in joining our efforts to detect continuous gravitational waves. These are waves that have not yet been detected, expected from fast rotating compact objects. The detection problem is possibly one of the most challenging across the various types of GW signals, with the data analysis procedures effectively increasing the detector sensitivity by a significant amount. The group at AEI is the largest group world-wide devoted to this endeavour, designing and carrying out the deepest searches and deploying them on in-house computing resources and on the Einstein[AT]Home volunteer commuting project.

The ideal candidate should have an excellent track record, programming experience, have worked with data, be creative, interested in astronomy and astrophysics, enthusiastic and should like to work in a team. Prior experience with gravitational wave data is not required.

The initial appointment will be for two years with the possibility, upon satisfactory performance, of an extension.

Applications should comprise a CV, publication list and a brief research statement. They should be submitted by email to jobs-gw-han[AT]aei.mpg.de indicating “CW post doc application” or “CW PhD student application” in the subject line. Candidates should also arrange that three letters of reference be sent to jobs-gw-han[AT]aei.mpg.de. Applications will be considered as they are received. The start date is flexible but preferably before the end of September 2018.

Postdoc position in Gravitational Wave source populations at Radboud University, The Netherlands

Applications are invited for a 2 year postdoctoral positions at Radboud University in the Netherlands to work in the Gravitational Wave group (Gijs Nelemans, Samaya Nissanke, Paul Groot) on the Gravitational-Wave Universe toolbox. The toolbox will create a virtual GW universe (on Galactic, local and global scale) and simulates the observations with different GW detectors and EM instruments of that Universe.

The Department of Astrophysics, is part of the Institute of Mathematics, Astrophysics and Particle Physics. The vibrant department consists of 13 faculty, ~15 postdocs, ~25 PhD students. Research activities focus on high-energy astrophysics, cosmic-rays, gravitational waves, stellar and binary evolution, clusters and the Milky Way.

The positions are part of the collective labour agreement (CAO) of the Dutch universities, with gross/month salaries of 3000-4300 Euro depending on experience. The position is available per direct.

Previous experience with gravitational waves or GW source populations is preferred. The applicants should have a PhD in astronomy or physics. Additional information can be obtained by contacting Gijs Nelemans (nelemans[AT]astro.ru.nl).

To apply, email a cover letter, CV, names of three references and brief research statement to secr[AT]astro.ru.nl.

Postdoctoral Researcher in High Energy Nuclear Physics at the University of Kansas, USA

Applications are invited for a post-doctoral or associate researcher position in experimental high-energy physics with the University of Kansas beginning as early as May 1, 2018. Post-doctoral researcher candidates are required to have a Ph.D. in physics by date of appointment and research experience in experimental high-energy physics or a related experimental field. Candidates with three or more years of post-doctoral experience may be eligible for initial appointment as associate researcher. The person would work with the University of Kansas group on physics data analysis and detector operation and development for the CMS experiment. Candidates with relevant interests and experience are sought.

The University of Kansas CMS group is pursuing a broad and exciting research program, with elements including detector operation and development in the CMS tracker and ECAL groups, along with work towards the improvement of the CMS detector and the development of a precision timing detector for the LHC Phase-II upgrade. The group participates in a number of data analysis efforts, with particular focus on searches for evidence of new physics, beyond the Standard Model. In addition to searches for incarnations of Supersymmetry and models with new, heavy quarks, an ambitious search program utilizing modern machine learning techniques is being developed. The post-doctoral researcher would be expected to participate in many of these activities, taking a leadership role in advancing and dictating the group’s research program, interacting with and mentoring students, and engaging in creative and independent thought.

The person may be stationed at CERN, in Geneva, Switzerland or at the University of Kansas in Lawrence.

For more information and to apply go to https://employment.ku.edu/staff/10972BR .Review of the applications will begin on April 1, 2018. For first consideration, please apply before April 1, 2018. Applicants should arrange for three letters of reference to be sent to crogan@ku.edu. Additional inquiries can be made by email to crogan[AT]ku.edu.

The University of Kansas prohibits discrimination on the basis of race, color, ethnicity, religion, sex, national origin, age, ancestry, disability, status as a veteran, sexual orientation, marital status, parental status, retaliation, gender identity,
gender expression and genetic information in the University’s programs and activities. The following person has been designated to handle inquiries regarding the non-discrimination policies and is the University’s Title IX Coordinator: the Executive Director of the Office of Institutional Opportunity and Access, IOA[AT]ku.edu, 1246 W. Campus Road, Room 153A, Lawrence, KS, 66045, (785)864-6414, 711 TTY.

The Mathematics of Gravity and Light, Rhode Island, USA

American Mathematical Society: Mathematics Research Communities 2018
`The Mathematics of Gravity and Light’

Dates: June 3-9, 2018
Place: Whispering Pines, Rhode Island, USA

The propagation of light probes the fundamental structure of spacetime whose gravitational dynamics is described by general relativity or possible modifications. This summer conference explores mathematical properties of gravitational lensing and how modified theories of gravity can be constructed and tested with lensing.

MRC programs are intended for peridoctoral researchers (typically between 2 years before to 5 years after obtaining the PhD), and this interdisciplinary conference is aimed at mathematicians, physicists and astronomers. Accessible introductions to the relevant aspects of Riemannian, Lorentzian and Finslerian geometry will be given, and the focus will be on team-based collaborative research. It is hoped that this week will also spark future collaborations among participants.

Topics addressed in this conference:
– deterministic and stochastic weak-field gravitational lensing;
– singularities in gravitational lensing;
– numerical aspects of gravitational lensing with astrophysical applications;
– optical geometry of Lorentzian spacetimes;
– modified gravity theories and constructive gravity;
– non-Lorentzian optical geometries;
– testing braneworld models.

Organizers:
Charles Keeton, Rutgers University
Arlie Petters, Duke University
Marcus Werner, Kyoto University

Applications:
The program is fully funded by NSF, and the deadline for applications is February 15th.
Please use the link provided.

PhD position in neutron star physics at the Nicolaus Copernicus Astronomical Center (NCAC), Warsaw, Poland

PhD scholarships are available at the Nicolaus Copernicus Astronomical Center in Warsaw, Poland. In particular there are projects available in the neutron star group, on neutron star superfluidity and pulsar glitches and on gravitational wave emission in neutron stars, both under the supervision of Dr Brynmor Haskell.

The Nicolaus Copernicus Astronomical Center is one of the leading astronomical institutes in Poland, and the neutron star group is involved in cutting edge research on the equation of state of dense matter, neutron star superfluidity, gravitational wave detection and pulsar glitches.The neutron star group is currently composed of 4 staff members (Pawel Haensel, Leszek Zdunik, Michal Bejger and Brynmor Haskell), 4 postdocs and 3 students.

Warsaw is a vibrant European capital, rich in history and culture, and well connected to other European and international destinations by rail, road and air.

A detailed description of the projects, together with instructions to apply, can be found on the website: https://www.camk.edu.pl/en/phd/

Applications must be received by the Nicolaus Copernicus Institute before March 25th 2018. Applicants are, however, encouraged to contact Brynmor Haskell (bhaskell[AT]camk.edu.pl) well in advance, to discuss potential projects.

2nd CfP: Fifth International Conference on the Nature and Ontology of Spacetime, Albena, Bulgaria

To mark the 110th anniversary of Hermann Minkowski’s groundbreaking lecture “Space and Time” the main theme of the Fifth International Conference on the Nature and Ontology of Spacetime will be the nature of spacetime – whether spacetime should be regarded as an abstract mathematical notion modelling an evolving present or spacetime represents a block universe or a growing block universe?

Physicists are especially encouraged to attend because even relativists hold widely different views, e.g., that

(i) spacetime is nothing more than a mathematical continuum (which is essentially Poincaré’s view that prevented him from discovering the spacetime structure of the world and from developing the mathematical formalism of spacetime physics)

(ii) the question of the reality of spacetime belongs to philosophy (which is hardly physics at its best because the question of the dimensionality of the world can be answered only by physics).

Despite that the focus of the fifth spacetime conference will be on the main theme, the Scientific Organizing Committee invites papers from physicists and philosophers on any topics related to the nature and ontology of spacetime.

In addition to talks and poster sessions, special coffee hours will be included in the program to stimulate more informal discussions among the participants. For this reason we encourage interested colleagues to attend the conference even if they do not plan to give a talk or present a poster.

Contributed papers in the form of extended abstracts of between one and two pages should be emailed by Wednesday, February 28, 2018 to 2018conference@minkowskiinstitute.org. Submissions will be reviewed and notification of acceptance will be given by Wednesday, March 21, 2018.

The location of the conference has been specifically chosen to combine a research meeting and a vacation (at affordable price).

Scientific Organizing Committee:

Dennis Dieks (Utrecht University)
Mauro Dorato (University of Rome Three)
George F. R. Ellis (University of Cape Town)
Robert Geroch (University of Chicago)
Eleanor Knox (King’s College London)
Vesselin Petkov (Minkowski Institute, Montreal)
Steven Savitt (University of British Columbia)
Anguel Stefanov (Bulgarian Academy of Sciences)
James Owen Weatherall (University of California, Irvine)
Christian Wüthrich (University of Geneva)

The Third Zeldovich meeting, Minsk, Belarus (2nd announcement)

This is a second announcement of the 3rd Zeldovich Meeting in Minsk, Belarus.

The online registration for the 3rd Zeldovich meeting to be held in the National Academy of Sciences of Belarus in Minsk, Belarus on April 23-27, 2018 has been started. Participants should register at http://ntsrvg9-2.icra.it/meetings/registration_zeld3.htm with the deadline of 31st of March 2018 and submit titles and abstracts of their talks.

The registration fee is 200 euro for professors and 50 euro for students. It has to be paid in cash during the conference. It includes welcome cocktail, conference dinner, coffee/tee and refreshments during breaks, conference set (bag with the poster, program and badge) and a copy of conference proceedings.
The list of confirmed invited speakers with their talks includes:

Gennady Bisnovatyi-Kogan – Strong shock in a uniformly expanding universe
Valery Chechetkin – Asymmetric nucleosynthesis
Artur Chernin – Dark energy in Zeldovich Local Pancake
Evgeny Derishev – Radiation-mediated shocks
Andrey Doroshkevich – TBD
Gyula Fodor – Localized objects formed by self trapped gravitational waves (geons)
Vladimir Fortov – TBD
Sang Pyo Kim – Strong QED phenomena in astrophysics
Noam Libeskind – TBD
Vladimir Lipunov – The Discovery of gravitational waves: prediction and observation
Manuel Malheiro – TBD
Agnieszka Pollo – How luminous galaxies trace the dark Universe
Alexei Pozanenko – Observations of GRB 1170817A associated with LIGO/Virgo GW170817 in gamma-rays, optic and radio, and the model of prompt gamma-ray emission
Istvan Racz – TBD
Jorge Rueda – Latest news on the induced gravitational collapse scenario of long gamma-ray bursts
Remo Ruffini – Gamma-ray Bursts
Narek Sahakyan – TBD
Nikolai Shakura – Ya. B. Zeldovich and background of the accretion processes theory in the Universe
Alexei Starobinsky – TBD
Lev Titarchuk – Comptonization Problem and Its solution in Application to the Spectra of the Neutron Star and Black Hole Source
Oleg Zaslavski – Ultra-high energy particle collisions near black holes and singularities and super-Penrose process

2nd Institute of Space Sciences Summer School on “Gravitational Wave Astronomy”, Barcelona, Spain

2ND INSTITUTE OF SPACE SCIENCES SUMMER SCHOOL
GRAVITATIONAL WAVE ASTRONOMY
FIRST ANNOUNCEMENT

Place: Institut de Ciencies de l’Espai – Barcelona, Spain, July 2-6, 2018

The Institute of Space Sciences (Institut de Ciències de l’Espai – ICE) is organizing its Summer School on “Gravitational Wave Astronomy” that will be held at the Institute, located at the Campus of the Universitat Autònoma de Barcelona, in Bellaterra, only 20kms from Barcelona, from July 2nd to 6th 2018.

The School program covers most aspects of Gravitational Wave Astronomy, from the detection technology to the astrophysics, cosmology and fundamental physics that we can do with gravitational wave detections and their electromagnetic counterparts.

The Institute of Space Sciences will welcome around 30 Master and Doctoral students to attend the Summer School: they will broaden their knowledge on this exciting field as well as get in touch with the other research groups working at the Institute.

Information and application forms can be found at

http://www.ice.csic.es/summer2018

REGISTRATION will be open on February 5th, 2018 and will close on April 2nd, 2018. Acceptance of participants will be announced on April 23rd, 2018. There is a registration fee for the School of 50 EUROS. A number of partial and full studentships will be available. Additional information can be requested to summer2018[AT]ice.csic.es

LECTURERS AND TOPICS

+ Theoretical Foundations – Carlos F. Sopuerta (ICE)
+ GW Detection – Miquel Nofrarias (ICE)
+ GW Source Modelling – Ulrich Sperhake (Cambridge)*
+ GW Data Analysis – Alicia Sintes (Mallorca, UIB)
+ GW Astrophysics – Pau Amaro-Seoane (ICE)
+ Electromagnetic Counterparts – Matt Benacquista (NSF)*
+ Relativistic Stellar Dynamics – Xian Chen (Beijing, CAS)
+ Neutron Stars and Black Hole – Nanda Rea (ICE)
+ The Galactic Centre and GWs – Rainer Schödel (IAA, Granada)
+ Cosmology and GWs – Jaume Garriga (ICCUB)*
* To be confirmed

ORGANIZING COMMITTEE

L. Gesa (ICE-CSIC & IEEC)
P. Amaro-Seoane (ICE-CSIC & IEEC)
M. Hernanz (ICE-CSIC & IEEC)
M. Nofrarias (ICE-CSIC & IEEC)
A. Serenelli (ICE-CSIC & IEEC)
C.F. Sopuerta (Chair, ICE-CSIC & IEEC)
D. Torres (ICE Director, ICE-CSIC & IEEC)
N. Cortés (ICE-CSIC & IEEC)

AGR 2018 — Atlantic General Relativity Conference and Workshop 2018, Antigonish, NS, Canada

AGR 2018 — Atlantic General Relativity Conference and Workshop 2018 – First Announcement

The 2018 Atlantic General Relativity Conference will be held from Tuesday, June 6 to Thursday, June 7 at St. Francis Xavier University in Antigonish, Nova Scotia, Canada. (Approximately a 2 hour drive north of Halifax.)

As in previous years, the theme of Atlantic GR will be all aspects of classical and quantum gravity. The format will consist of one invited talk along with contributed talks by participants. The invited speaker this year is Dr. Latham Boyle (Perimeter Institute).

The Atlantic GR Conference will be preceded by a one-day workshop on Monday, June 5, 2018 aimed at the non-expert. The bulk of the workshop will consist of invited lectures from Dr. Chris Clarkson (Queen Mary University of London) [to be confirmed]. The format will include ample time for discussion and collaboration. (see website for details).

There will be no registration fee for either the workshop or the conference. We expect funding to partially subsidize accommodation in university residence for a limited number graduate students. If you wish to request this support, please consult the conference website.

The local organizing committee is Robert van den Hoogen, Viraj Sangai and Alan Coley. The scientific organizing committee also includes Viqar Husain, Sanjeev Seahra, Edward Wilson-Ewing, Ivan Booth and Hari Kunduri. Both the conference and the workshop are sponsored by the Atlantic Association for Research in the Mathematical Sciences (AARMS), the Perimeter Institute, and St. Francis Xavier University.

More information and online registration: sites.stfx.ca/mscs/gravity/agr18.html

Black Holes Are Forever, Rio de Janiero, Brazil

Black holes are now at the center stage of astrophysics and fundamental physics. They are made of pure gravitation and offer a gamut of instances where physical processes in the vicinity of the horizon, involving either fluids or quantum fields, can be tested and observed. Their existence has now been put beyond conjecture with the detection of gravitational waves generated by the collision of these objects.

Jose P. S. Lemos is a distinguished researcher that works in black holes physics and astrophysics. He undergraduated and took the MSc in Pontificia Universidade Catolica do Rio de Janeiro, did his PhD in the University of Cambridge, got his first position at Observatorio Nacional do Rio de Janeiro, and is now professor at Instituto Superior Tecnico, University of Lisbon.

The goal of the conference is to promote, strengthen and disseminate the research on black holes, focusing in, but not restricted to, Jose’s contributions.

We will also commemorate two historical dates. First, 100 years of Einstein’s second paper on gravitational waves where he deduced the correct quadrupole formula, his first 1916 paper had an incorrect monopole formula. Second, 50 years of black holes, as in 1968, Wheeler put the name black holes for the first time in a paper thus entitling the astro and gravitational physicists to use it freely.

21st Capra meeting on Radiation Reaction in General Relativity, Potsdam, Germany

The 21st Capra meeting on Radiation Reaction in General Relativity will be held at the Max Planck Institute for Gravitational Physics (aka Albert Einstein Institute) in Potsdam-Golm. The meeting will run from Monday June 25, 2018 until Friday June 29, 2018.

The Capra meetings focus on the modelling of black hole binary dynamics in the small mass-ratio limit. In good Capra tradition the meeting will be of an informal nature with a mixture of invited reviews, contributed talks, and open discussions. There will be no registration fee or proceedings. Contributed talks on all aspect of modelling small mass-ratio systems are welcome.

For more information and registration please visit: https://capra21.aei.mpg.de

34th Pacific Coast Gravity Meeting, Pasadena, CA, USA (2nd announcement)

The 34th Pacific Coast Gravity Meeting will be held at the California Institute of Technology in Pasadena, CA, on March 16 and 17, 2018. In keeping with its tradition, this will be an open, relaxed, and informal conference. We are inviting researchers and students interested in all areas of gravitational physics: classical and quantum gravity, general relativistic astrophysics and cosmology, quantum cosmology, gravitational waves, and experimental gravity. Because this is a regional meeting, many attendees will be from the western United States, but all are welcome.

It is a pleasure to dedicate this conference to Jim Isenberg, who started these meetings and has kept them going for 34 years.

Talks
Following the usual tradition all participants, and especially postdocs and graduate students, are encouraged to contribute short, introductory talks on their current research, with the aim of fostering communication and understanding among gravitational physicists with different backgrounds. A prize (sponsored by the APS Division of Gravitational Physics) will be awarded for the best talk given by a student at the meeting.

Deadlines
Prospective speakers should register by February 18 to receive full consideration. Late applicants will be considered at the discretion of the organizers. A block of rooms has been reserved at a nearby hotel. Reserve your room by February 15 to receive a reduced rate. For details, see: www.tapir.caltech.edu/~pcgm34

Astrophysics, Gravity and Theoretical Elementary Particle Physics Postdoctoral Positions in Department of Physics, IIT Bombay, India

Astronomy, Cosmology and Gravity, and High Energy Theory research groups, Department of Physics, IIT Bombay, intend to appoint a few postdoctoral positions in all areas of Astrophysics, Dark Matter, Early Universe Cosmology, Elementary particle physics, Gravitational waves and Electromagnetic followup, Neutrino Physics, Physics beyond the Standard model, QCD, Quantum gravity and String theory. Currently, the groups have nine faculty members, six Post-doctoral fellows, and Seventeen PhD students. Please visit the group pages to know more about the research activities:

* http://www.phy.iitb.ac.in/en/research/high-energy-theory
* http://www.phy.iitb.ac.in/en/research/astronomy-cosmology-gravity

Candidates awarded PhD recently, or research scholars who have submitted their thesis and waiting for the examination are strongly encouraged to apply. More details about the position can be found at: http://www.iitb.ac.in/en/careers/institute-post-doctoral-fellows

The positions are available for up to two years. Informal enquiries can be made to any faculty member in these groups.

Tenure: 2 years
Fellowship: INR 780000 – 852000 per annum (House Rent Allowance 24% extra)
Deadline: 28 February 2018

To apply, please send CV (with the date), research statement and have at least two letters of reference sent by email to

thep_acg_postdoc_app[AT]phy.iitb.ac.in

with the subject “Application for Institute Post-doctoral Positions – Candidate name”.

Special Issue “Origin of the Universe”

Dear Colleagues,

The birth of the universe out of the M-theory landscape remains an important question in modern cosmology. Questions such as “Why are the only three large spatial dimensions?”, “What drives inflation?”, and “Is there observable evidence of the birth of the universe out of the M-theory landscape?” are subjects of active debate. We invite colleagues to submit papers on the following topics:

Trans-Plankian inflation
Models of inflation
Constraints on Inflation effective potentials
Brane-world inflation
Constraints on Inflation initial conditions
Primordial gravitational waves
Cosmic dark flow and large-scale structure
Origin of the cold spot in the CMB
Anomalies in the CMB from inflation and the M-theory landscape
Supersymmetric Inflation
Primordial nucleosynthesis constraints on the birth of the universe
Constraints on time-varying fundamental constants
Constraints on anisotropic cosmological models
Why are there three large dimensions

Prof. Dr. Grant J. Mathews
Prof. Dr. Laura Mersini Houghton
Guest Editors

Special Issue “Quantum Field Theory XXI”

Dear Colleagues,

It is a pleasure to announce the Special Issue “Quantum Field Theory XXI”. Since its first applications in the XX century, and the crowning with the formulation of the Standard Model of electroweak and strong interactions, quantum field theory has evolved, both in meaning and intention. Its perturbative and nonperturbative incarnations have been playing an undisputed role in modern theoretical physics, not only in the refinement of the Standard Model and of its supersymmetric extensions, but also in the quest for a quantum theory of gravitation, carried on in the programs of string theory, supergravity, and many other quantum gravities (nonlocal quantum gravity, asymptotic safety, group field theory, and so on), and in our understanding of astrophysical and cosmological processes, ranging from the Big Bang to stellar evolution, and from the cosmological constant to gravitational waves.

This Special Issue aims to recapitulate part of these achievements and offer a perspective on near- and far-future applications of quantum field theory in the present century. Review and perspective papers are especially welcome.
Gianluca Calcagni
Guest Editor

Special Issue “Interplay of QCD, Cosmology and Astroparticle Physics”

Dear Colleagues,

Quantum Chromodynamics (QCD) encodes a large richness of physical phenomena, and is intensively studied theoretically and experimentally. However, in spite of its success, some of its aspects are not yet fully understood; there remain open questions that demand answers. Most of these questions have important implications in cosmology and astroparticle physics.

The QCD Lagrangian contains ingredients that can clarify key questions concerning cosmology. The term, which breaks conformal symmetry, even in the massless case, is related to the axion field and its search concerns the nature of dark matter and also could contribute to the cosmological constant. Other possibilities of dark matter have been speculated, such as the existence of exotic hadrons made of color-octet complexes. The mentioned term, which is not CP invariant, plays an important role in the equation of the state of the deconfinement transition from hadronic matter to quark gluon matter, such as what happened in the first moments of the Universe after the Big Bang. This term is proportional to the trace anomaly, which measures the departure from a free quark-gluon gas of the obtained strongly-coupled quark gluon matter, and is also related to vacuum structure.

The experiments of the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC) have created strongly-coupled quark gluon matter in nucleus–nucleus collisions. Most of the observed collective effects have also been seen in pp collisions. In this case, it is not clear how hydrodynamic models can be applied. There is not a unified picture of the transverse momentum distribution of pp data, as well as its azimuthal distribution. The interplay between soft and hard collisions can show interesting relationships between parton entanglement and thermalization. On the other hand, the forward LHC detectors provide important information on elastic and diffractive scattering, which play important roles in determining the hadronic cascade produced in ultrarelativistic cosmic rays. Usual hadronic models, previously-matched to LHC data, are not able to describe some of the cosmic ray data at higher energies, such as the excess of muons and the energy dependence of the distribution of the length of maximum depth. Phenomena like gluon saturation, color reconnection, string interactions, percolation, and string junction working at LHC energies could have implications in the hadronic cascade.

The QCD conformal breaking term, the axion field and the relation to dark matter and the cosmological constant, the strong CP problem, the dependence on the temperature of the trace anomaly, the equation of state close to the deconfinement phase transition, the collective effects produced in colliding small systems and its thermalization, the transverse momentum distributions, including azimuthal distributions and the interplay between soft and hard interactions, the elastic and diffractive scatterings and in general forward physics at LHC and ultrahigh cosmic ray energies, models of hadronic cascade are the subject of special interest at an interplay of QCD with two related fields: Cosmology and Astroparticle Physics.

Prof. Dr. Carlos Pajares
Guest Editor

Special Issue “F(R) Gravity”

Dear Colleagues,

F(R) gravity plays a prominent role in the description of gravitational phenomena at large and astrophysical scales. Among the various modified gravity proposals, the F(R) gravity framework is the conceptually simplest generalization of Einstein’s gravity, and has attracted the interest of many cosmologists. In this special issue, the focus will be on applications of F(R) gravity at large and astrophysical scales. We aim to highlight a plethora of theoretical proposals that find explanation in the context of F(R) gravity, both in cosmology and in astrophysics. In view of the current observational data and also due to the upcoming observations, this issue aims to gather all the up to date facts with regard to F(R) gravity applications. All the above problems maybe also be considered in frames of other modified gravities, like modified Gauss-Bonnet gravity, string-inspired theory, teleparallel gravity, Born-Infeld type gravity or non-minimal modified gravity.

Dr. Vasilis K. Oikonomou
Prof. Dr. Sergei D. Odintsov
Guest Editors

MetroAeroSpace2018 – Special Session on “Relativistic Metrology”, Rome, Italy (1st announcement)

5th IEEE International Workshop on Metrology for Aerospace (MetroAeroSpace 2018)
Roma, Italy, June 20-22, 2018

Special Session on “Relativistic Metrology”
Chairs:
Roberto Peron, Istituto di Astrofisica e Planetologia Spaziali, Roma, Italy
Enrico Lorenzini, University of Padova, Padova, Italy

The Session will take place at Roma, Italy, in the context of the 5th IEEE International Workshop on Metrology for Aerospace (MetroAeroSpace 2018), June 20-22, 2018. It will focus on the consequences of special and general relativistic models on the definition and measurement of various metrological quantities.

Topics covered (non-exhaustive list):

Measurement of time (and frequency);
Measurement of length;
Geodesy;
Navigation;
Astronomy and astrometry;
Fundamental physics tests in space.

Abstracts are welcome on these, as well as on related ones.

Important dates: January 26, 2018 – Abstract Submission Deadline
April 15, 2018 – Notification of Acceptance
May 20, 2018 – Final Paper Submission Deadline

Les Houches summer school on gravitational waves, Les Houches, France

The school will cover the emerging field of gravitational and multi-messenger astronomy, following the discovery of GW150914 and GW170817. We can soon expect many other detections, which will open up a new window on astrophysical objects such as compact binary systems (black holes, neutron stars), supernovae, pulsars, a stochastic gravitational wave background, or even unexpected objects. The objective of the school is to provide a large number of students with a solid corpus in most aspects of the field.

Summer school organized by:

Bruce ALLEN, Albert Einstein Institute, Hannover, Germany
Marie-Anne BIZOUARD, Laboratoire de l’accelerateur lineaire, Orday, France
Nelson CHRISTENSEN, ARTEMIS, Laboratoire de la Cote d’Azur, Nice, France
Pierre-Francois COHADON, LKB, ENS, Paris, France