We aim to elucidate the "extreme universe" from the new perspective that all things are composed of "quantum information", going beyond the conventional understanding of "time, space, and matter" in physics. This "extreme universe" refers to the extreme conditions of the natural world, and includes the following three targets:
(i) quantum theory of Black holes (i.e. the limit of space),
(ii) quantum theory of Cosmology (i.e. the limit of time),
(iii) Dynamics of quantum matter (i.e. the limit of matter).
To solve these problems, we need the ultimate understanding of the laws of physics.
Extreme Universe 2025 @ YITP, Kyoto University, Oct.27(Mon.)-Nov.1(Sat.), 2025[ Google form]
We have opened [a Youtube channel] dedicated to our collaboration activities. The videos we have now include the videos of the colloquia. We expect that more videos will come up in the near future.
WHAT’S NEW
We will have the 7th public ExU Online Colloquium “Public ExU Colloquium” on September 30 (Tue.) 16:00 (JST). The speakers are Prof. Alexander Altland (University of Cologne). For details, please refer to the poster. If you have not registered yet, please register at our online event website at least three days prior to the colloquium. (It is not necessary to register again if you have done it already.)
The 5th Annual Meeting of the Grant-in-Aid for Transformative Research Areas (A) “Extreme Universe” will be held from Friday, December 26 to Sunday, December 28, 2025, in Matsuyama, Ehime Prefecture. This meeting will feature research presentations by both the Planned Research Groups and the Publicly Offered Research Groups within the project. Poster presentations by participants are also planned. Poster awards will be given to outstanding presentations by postdoctoral researchers and students. We encourage your active participation. For details including registration, please visit the official meeting website.
A press release is made by Prof. Go Yusa and Prof. Masahiro Hotta from our group C02 and their collaborators about "Successful Video Imaging of Electron Waves Propagating Along the 'Edge' and 'Interior' of a Topological Material – Opening the Door to Quantum Universe Simulation Experiments." [Link]
The workshop "Nagoya Workshop on General Relativity" will be held at Nagoya University from January 26 to 28, 2026. For more details, please visit [link].
The 4rd young researchers' workshop of the Extreme Universe Collaboration was held at Kyukamura Irago, Aichi, Japan, with about 70 participants, who exchanged their latest research results and had discussions on quantum information, elementary particle physics, cosmology, and condensed matter physics.
