Category: Conferences

The aim of this workshop is to bring together participants from computational mathematics and gravitational wave astronomy to tackle computational challenges in leveraging data-driven methods in key areas of gravitational wave data analysis in order to maximize the science output of the ongoing and upcoming observations. The areas of focus will be: (i) noise classification and detection, (ii) waveform modeling and uncertainty quantification, and (iii) source parameter and astrophysical population Bayesian inference.

The participants will develop and apply new mathematical and computational techniques including: (i) neural network classifiers for distinguishing signals from instrumental noise, (ii) generative machine learning models for simulating realizations of non-Gaussian and non-stationary stochastic processes, (iii) surrogate models including uncertainty quantification, (iv) stochastic sampling, neural posterior estimation leveraging deep neural networks with normalizing flows or diffusion models, and (v) hierarchical Bayesian inference with non-parametric models such as Gaussian processes and simulation-based / approximate Bayesian approaches.

Workshop Website

“EFTs, Gravity, and Fluid Dynamics: Progress, Challenges, and Emerging Opportunities Workshop” is an event sponsored by the Physics Department of the University of Illinois at Urbana-Champaign and The Gravity Theory Trust, taking place in Urbana, Illinois on December 16 – 18, 2024 in room 190 of the Engineering Sciences Building.

The purpose of this workshop is to bring together experts in Effective Field Theory (EFT), gravity, and fluid dynamics to foster interdisciplinary collaborations.

Sample topics interfacing EFTs, gravity, and fluid dynamics include:

New insights in gravitational thermodynamics and gravitational EFTs.
Causality constraints on gravitational and hydrodynamic EFTs.
The fluid-gravity correspondence.
Mathematical aspects of well-posed formulations of non-ideal fluid dynamics in general relativity.

There is no registration fee but registration is required. The deadline for registration is October 31, 2024.

Workshop Website

Gravitational Wave Background Found in Pulsar Timing Arrays: Implications for Merging Supermassive Black Holes

Coordinators: Luke Kelley, Chiara Mingarelli, and Gabi Sato-Polito 

The recent observation of nanohertz gravitational waves by Pulsar Timing Arrays (PTAs) has opened a new observational window into the universe. Although the origin of the signal has yet to be determined, the measured gravitational-wave background may be produced by a collection of in-spiralling supermassive black holes (SMBHs) or by physics beyond the standard model. The evidence for this background therefore offers unique insights into the astrophysics of SMBHs and potentially new physics. This Rapid Response Workshop will solely focus on the scientific implications for SMBHs of this first PTA detection bringing together experts on both theory and observations.

Workshop Website

Fundamental aspects of black holes have been actively studied so far to unravel the mystery of black holes and to achieve new physics like the quantum theory of gravity. Black holes are the simplest astrophysical objects in the Universe as each black hole can be characterized by a few parameters only in general relativity. For this reason, they are regarded as the best sites to probe new physics.

Given the recent developments in observational and theoretical progress in black hole physics, it is important for theoretical physicists to discuss how we can unravel the mysteries of black holes, probe new physics, and test existing theories from both fundamental and observational points of view.

This workshop aims to bring together experts working on astrophysical and fundamental aspects of black holes to share ideas and expertise and to offer introductory talks to learn relevant state-of-the-art knowledge.

Invited Speakers (*=tbc)

Yanbei Chen (Caltech)
Katy Clough (Queen Mary U. of London)
Astrid Eichhorn (Southern Denmark U.)
Akihiro Ishibashi (Kindai U.)
Paolo Pani (Sapienza U. of Rome)
Chia-Hsien Shen (Natl. Taiwan U.)
*Sergey Sibiryakov (Perimeter Inst.)
Takahiro Tanaka (Kyoto U.)

Contact
gravity2025(at)yukawa.kyoto-u.ac.jp

Organizers
Katsuki Aoki, Antonio De Felice, Francesco Di Filippo, Mohammad Ali Gorji, Shinji Mukohyama, Naritaka Oshita (Chair), Masroor C. Pookkillath, Kazufumi Takahashi

Workshop Website

JGRG is the community of researchers in Japan, working on General relativity and Gravitation. JGRG has hosted an annual workshop series under the same title since 1991. The main purpose of the workshop is to provide a venue for exchanging ideas to pursue future trends of research. The workshop covers a wide range of topics related to general relativity and gravitation.

Date & Venue

December 2 (Mon) – December 6 (Fri), 2024
HigashiOsaka Campus, Kindai University, Osaka

Invited Speakers

• Vitor Cardoso (Niels Bohr Institute/Lisbon IST)
• Shasvath Kapadia (IUCAA)
• Jutta Kunz (University of Oldenburg)
• Pablo A. Cano (ICC, University of Barcelona)
• Guo-Chin Liu (Tamkang University)
• Kent Yagi (University of Virginia)
• Hirotaka Yuzurihara (ICRR)
• and more

Registration

Registration form:
Please register from here.
Registration is free of charge.
We do not offer live streaming of sessions or provide recorded presentations.

Important dates

• September 25 (24:00 JST): Deadline for travel support, Visa support
• October 15 (24:00 JST): Deadline for abstract submission
• October 30: Deadline for registration (without presentation)

Travel Support
We offer travel support for domestic participants, particularly students. If you would like to request travel support, please indicate this in the registration form. As our budget for travel support is limited, we may not be able to accommodate all requests.

Programme

Dec. 2 (Mon) – Reception: 9:30 – 10:30, Opening: 10:30 – 10:45
Dec.4 (Wed) – Banquet: 18:00- 20:00
Dec.6 (Fri) – Award & Closing: 12:00 – 12:30

Participant List – TBA

Banquet – Date: Dec. 4th (Wed) 18:00-20:00

Place: THE CHARGING PIT&DINER (Building No.7) [Japanese]Price: TBA (cash only)

Scientific Organizing Committee

Hideki Asada (Hirosaki U.), Tomohiro Harada (Rikkyo U.), Kenta Hotokezaka (RESCEU), Akihiro Ishibashi (Kindai U.), Yosuke Itoh (Osaka Metropolitan U.), Keisuke Izumi (Nagoya U.), Sugumi Kanno (Kyushu U.), Kohei Kamada (HIAS, UCAS, Hangzhou), Tsutomu Kobayashi (Rikkyo U.), Kazunori Kohri (NAOJ), Koutarou Kyutoku (Chiba U.), Kei-ichi Maeda (Waseda U.), Hayato Motohashi (Kogakuin U.), Shinji Mukohyama (YITP), Keiju Murata (Nihon U.), Atsushi Nishizawa (Hiroshima U.), Toshifumi Noumi (University of Tokyo), Masato Nozawa (Osaka Institute of Technology), Ryo Saito (Yamaguchi U.), Hisa-aki Shinkai (Osaka Institute of Technology), Teruaki Suyama (Tokyo Institute of Technology), Takahiro Tanaka (Kyoto U.), Takashi Torii (Osaka Institute of Technology), Shinji Tsujikawa (Waseda U.), Masahide Yamaguchi (IBS/ Tokyo Institute of Technology), Kazuhiro Yamamoto (Kyushu U.), Shuichiro Yokoyama (Nagoya U.), Chul-Moon Yoo (Nagoya U.), Hirotaka Yoshino (Osaka Metropolitan U.)

Local Organizing Committee

Kaiki Taro Inoue, Akihiro Ishibashi, Yosuke Itoh, Yoshinori Matsuo, Ken-ichi Nakao, Masato Nozawa, Hisa-aki Shinkai, Takashi Torii, Hirotaka Yoshino

Workshop Website