{"id":527,"date":"2021-11-10T13:51:29","date_gmt":"2021-11-10T04:51:29","guid":{"rendered":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/?p=527"},"modified":"2025-11-12T07:58:11","modified_gmt":"2025-11-11T22:58:11","slug":"outline-of-project-c01","status":"publish","type":"post","link":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/en\/outline-of-project-c01\/","title":{"rendered":"Outline of Project C01"},"content":{"rendered":"

Quantum Cosmology from Quantum Information (21H05187)<\/h2>\n
\n
Principal Investigator: Tadashi Takayanagi<\/div>\n
\"\"<\/div>\n<\/div>\n

The geometric formula of entanglement entropy (Ryu-Takayanagi formula), which connects quantum information and gravity theory, has led to the prediction that the universe in gravitational theory is a collection of quantum information, which has attracted worldwide attention. The aim of group C01 is to develop this prediction by introducing the viewpoint of quantum information into high energy theory, and to uncover the basic theory of the \"dynamics of the creation of the universe (quantum universe),\" which is one of the three problems of extreme universe. The foundation for this is the \"gauge-gravity correspondence,\" or the hypothesis that the gravitational theory of the anti de Sitter universe is equivalent to a theory of quantum many-body system. The gauge-gravity correspondence is a powerful idea that has passed enormous verifications, but the basic principle of why this correspondence arises still remains unknown. If this principle is understood completely, it will be possible to elucidate the mechanism of the creation of the universe from nothing and eventually to construct the ultimate physical laws. The anti-de Sitter universe is a universe with negative curvature, while the real universe we live in and the process of creation of the universe are thought to have positive curvature, i.e., a de Sitter universe. In this research, we will first clarify the basic principle of gauge-gravity correspondence by combining the methods of quantum information theory and gauge-gravity correspondence, and then use it as a hint to extend the gauge-gravity correspondence beyond the anti-de Sitter universe to more general universes including the de Sitter universe. This will finally provide us with the fundamental theory for quantum cosmology.<\/p>\n

\"\"<\/p>\n

Members in C01<\/h3>\n

[Principal Investigator]<\/strong>
\nTadashi Takayanagi<\/a> Yukawa Institute for Theoretical Physics, Kyoto University<\/p>\n

[Co-Investigator]<\/strong>
\nYasuaki Hikida<\/a> Osaka Institute of Technology
\nKazumi Okuyama<\/a> Faculty of Science, Shinshu University
\nYasuhiro Sekino<\/a> Faculty of Engineering, Takushoku University
\nShigeki Sugimoto<\/a> Department of Physics, Kyoto University<\/p>\n

[International Research Collaborators]<\/strong>
\nShinsei Ryu<\/a> Princeton U., USA
\nBeni Yoshida<\/a> Perimeter Institute, Canada<\/p>\n

[ExU Postdoctoral Fellows(Research Collaborators)]
\n<\/strong>Jonathan Harper Yukawa Institute for Theoretical Physics, Kyoto University<\/p>\n

[Research Collaborators]<\/strong>
\nKanato Goto University of Osaka
\nTomotaka Kitamura Institute of Theoretical Physics, Rikkyo University
\nShoichiro Miyashita Graduate School of Advanced Science and Engineering, Waseda University
\nKazuhiro Sakai Institute of Physics, Meiji Gakuin University
\nTakahiro Uetoko National Institute of Technology, Kagawa College
\nMasamichi Miyaji Yukawa Institute for Theoretical Physics, Kyoto University
\nKenta Suzuki Department of Basic Science, College of Arts and Sciences, The University of Tokyo
\nShan-Ming Ruan Peking University
\nAli Mollabashi IPM - Institute for Research in Fundamental Sciences, Iran
\nPawel Caputa Stockholm University
\n<\/strong>Zixia Wei Harvard University
\nTakato Mori College of Science, Rikkyo University
\nYuya Kusuki Institute for Advanced Study, Kyushu University
\nYasuaki Nakayama NTT Communication Science Laboratories
\nPeng-Xiang Hao Tsinghua University \/ Yukawa Institute for Theoretical Physics, Kyoto University
\nMasashi Kawahira Department of Physics, Kobe University\n<\/p>\n

[Graduate Students]<\/strong>
\nTaishi Kawamoto Yukawa Institute for Theoretical Physics, Kyoto University
\nNaoki Ogawa Yukawa Institute for Theoretical Physics, Kyoto University
\nYu-ki Suzuki Yukawa Institute for Theoretical Physics, Kyoto University
\nTakashi Tsuda Yukawa Institute for Theoretical Physics, Kyoto University
\nKazuki Doi Yukawa Institute for Theoretical Physics, Kyoto University
\nHiroki Kanda Yukawa Institute for Theoretical Physics, Kyoto University
\nKotaro Shinmyo Yukawa Institute for Theoretical Physics, Kyoto University
\nKenya Tasuki Yukawa Institute for Theoretical Physics, Kyoto University
\nRyota Maeda Yukawa Institute for Theoretical Physics, Kyoto University
\nMichitaka Kohara Yukawa Institute for Theoretical Physics, Kyoto University
\nNanami Nakamura Yukawa Institute for Theoretical Physics, Kyoto University
\nKosei Fujiki Yukawa Institute for Theoretical Physics, Kyoto University
\nRyo Li Yukawa Institute for Theoretical Physics, Kyoto University\n<\/p>\n

[Past Members]<\/strong>
\nMasahide Sato Yukawa Institute for Theoretical Physics, Kyoto University
\nIbrahim Akal Yukawa Institute for Theoretical Physics, Kyoto University
\nYoshiki Sato Yukawa Institute for Theoretical Physics, Kyoto University
\nYusuke Taki Yukawa Institute for Theoretical Physics, Kyoto University\n<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Quantum Cosmology from Quantum Information (21H05187) Principal Investigator: Tadashi Takayanagi The geometric […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[37],"tags":[],"class_list":["post-527","post","type-post","status-publish","format-standard","hentry","category-organization"],"acf":[],"_links":{"self":[{"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/posts\/527","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/comments?post=527"}],"version-history":[{"count":45,"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/posts\/527\/revisions"}],"predecessor-version":[{"id":6001,"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/posts\/527\/revisions\/6001"}],"wp:attachment":[{"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/media?parent=527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/categories?post=527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/tags?post=527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}