Call for Publicly Offered Research (Kobo-Kenkyu)

MEXT -KAKENHI- Grant-in-Aid for Transformative Research Areas (A) ”Extreme Universe”

Period of Research: FY 2024-2025
Official Webpage in MEXT:
Page for downloading Application Procedures and Application Form for Grants-in-Aid for Scientific Research-KAKENHI- for FY2024(Grant-in-Aid for Transformative Research Areas(A)(Publicly Offered Research)):文部科学省 (

Deadline set by MEXT is Sep.19, 2023. However, the deadline in your institute might be earlier. Please check the application schedule.

For research activities in Extreme Universe Collaboration, refer also to the News Letter and the 2nd Annual Meeting page

Details of Research Area

 Conventionally, physics has explained the laws of nature using time, space, and matter as its basic building blocks. However, in the extreme situations in nature (which we call the “extreme universe” in our area), due to the strong quantum nature of the target physical systems, the degrees of freedom of space, time, and matter themselves fluctuate enormously, and existing theoretical approaches in physics face difficulties in the following three limits: the “limit of space” (quantum theory of black holes), the “limit of time” (quantum theory of cosmology), and the “limit of matter” (dynamics of quantum matter). However, as soon as the field of quantum information emerged in the 21st century, this new way of looking at things began to bring dynamic changes to physics. For example, the extreme universe based on quantum gravity can be regarded as an accumulation of quantum information, while such accumulation of quantum information also provides a highly accurate numerical analysis method for quantum materials called tensor network. In addition to the limits of space, time, and matter, this Research Area aims to bring together researchers involved in the study of the "limit of information" (quantum information), and to promote interdisciplinary research beyond the boundaries of existing fields toward the ultimate laws of physics associated with the various problems in the extreme universe.The goals of Planned Research are as follows. In the limit of space, the quantum theory of black holes is to be clarified and verified by integrating the viewpoint of quantum information into the gauge-gravity correspondence (B01), ultra-cold atom experiments (B02), and the general relativity (B03). In the limit of time, we explore quantum theory of cosmology by introducing quantum information theoretic ideas into quantum gravity (C01), quantum Hall experiment (C02) and cosmology (C03). In the limit of matter, we aim to reveal the dynamics of quantum matter by incorporating the concept of quantum information into quantum field theory (D01) and quantum many-body problems (D02). In addition, A01 will promote theoretical research on quantum information, and bridge the latest progress in quantum information research to physics of the extreme universe. Another important objective of this area is to promote international research on the extreme universe in the light of quantum information, and to actively encourage young researchers. Through these efforts, we aim to realize the above research goals and to transform physics into a discipline suitable for the era of quantum information.

Call for Proposals and Expectations for Publicly Offered Research, etc.

 This Research Area brings together various researchers in quantum information and physics to study quantum information and the extreme universe (quantum theory of black holes, quantum theory of cosmology, and dynamics of quantum matter). We also aim to create new developments beyond conventional research fields. In addition to research directly related to Research Groups A01-D02, we expect theoretical and experimental proposals complementary to Research Groups or those covering multiple research topics above. For example, various research on quantum information theory such as quantum computational complexity, quantum algorithms, quantum cryptography, quantum communication, and quantum error correction; research related to the implementation of quantum computers; applications of tensor networks, quantum circuit models, and quantum computers for simulating physical systems; studies on strongly correlated matter, quantum many-body systems and their non-equilibrium dynamics; gauge/gravity correspondence and quantum field theory; cosmology and numerical relativity; experiments related to the above. In addition, experimental research of highly controllable systems like qubit systems, and new approaches based on experiments and observations in the fields of elementary particles, atomic nuclei, and cosmology are also envisaged. We also appreciate innovative ideas connecting quantum information and physics, as well as bridging theory and experiment. In addition, we welcome proposals promoting international collaborations and fostering next-generation researchers such as graduate students. For details of Research Groups, please refer to the homepage of this Research Area.
 The upper limit of the annual budget is set at 2 million yen and 3.5 million yen per year, depending on the scale of the research; 2 million yen is mainly for theoretical research, while 3.5 million yen is mainly for experimental research.

Research Group, Upper Limit of Annual Budget and Number of research projects scheduled to be selected

Research Group Upper Limit of
Annual Budget
(Million yen)
Number of
research projects scheduled to be selected
E01 Theoretical or Experimental Research on Quantum Information 3.5
E02 Theoretical Research on Extreme Universe
E03 Experimental Research on Extreme Universe