{"id":506,"date":"2021-11-10T13:51:41","date_gmt":"2021-11-10T04:51:41","guid":{"rendered":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/?p=506"},"modified":"2025-12-13T19:04:35","modified_gmt":"2025-12-13T10:04:35","slug":"outline-of-project-b01","status":"publish","type":"post","link":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/en\/outline-of-project-b01\/","title":{"rendered":"Outline of Project B01"},"content":{"rendered":"

Quantum Black Holes from Quantum Information (21H05184)<\/h2>\n
\n
Principal Investigator: Norihiro Iizuka<\/div>\n
\"\"<\/div>\n<\/div>\n

Black Holes are probably the most mysterious and interesting objects in the universe. Classically due to their strong gravitational forces, once you enter through the black hole horizon, you can never go out. However if one considers the quantum effects, this is not true anymore. In fact a black hole has definite temperature and radiates thermally (which is so-called Hawking radiation). Furthermore, a black hole has huge entropy, suggesting that a black hole is in fact a coarse-grained description of degenerate states, whose degeneracy is given by exponential of the entropy, according to the Boltzmann\u2019s entropy formula. These suggest that one should also have a fine-grained description of gravity, which is quantum gravity and string theory is the most successful candidate for it. Recent studies show that two important concepts play an important role in understanding quantum gravity\/string theory. One is quantum information. The other is gauge\/string duality, which claims that certain quantum gravity is equivalent to certain gauge theory. Our main research goal is using these two important concepts, to understand the physics behind the horizon of quantum black holes, and how quantum mechanics is consistent with gravity. More concretely we would like to figure out the answer for the following key questions; how the physical information of the black hole leaks out through the Hawking radiation? How quantum gravity corrects Hawking\u2019s mistake? What are the laws of physics behind the black hole horizon? Through the study of quantum black holes, we would like to understand the basic principles for quantum gravity.<\/p>\n

\"\"<\/p>\n

Members in B01<\/h3>\n

[Principal Investigator]<\/strong>
\nNorihiro Iizuka<\/a> Department of Physics, National Tsing Hua University \/ Yukawa Institute for Theoretical Physics, Kyoto University<\/p>\n

[Co-Investigator]<\/strong>
\nToshifumi Noumi<\/a> Graduate School of Arts and Sciences, The University of Tokyo
\nMasaki Shigemori<\/a> Department of Physics, Nagoya University
\nSeiji Terashima<\/a> Yukawa Institute for Theoretical Physics, Kyoto University
\nTomonori Ugajin<\/a> Department of Physics, Rikkyo University<\/p>\n

[ExU Postdoctoral Fellows(Research Collaborators)]<\/strong>
\nAkihiro Miyata Yukawa Institute for Theoretical Physics, Kyoto University
\n<\/strong>Nicol\u00f2 Zenoni Yukawa Institute for Theoretical Physics, Kyoto University<\/p>\n

[Research Collaborators]<\/strong>
\nTakanori Anegawa National Institute of Technology, Yonago College
\nKoji Hashimoto<\/a> Department of Physics, Kyoto University
\nKengo Maeda<\/a> Faculty of Engineering, Shibaura Institute of Technology
\nMitsuhiro Nishida National Institute of Technology, Yuge College
\nKotaro Tamaoka<\/a> College of Humanities and Sciences Department of Physics, Nihon University\n<\/p>\n

[Graduate Students]<\/strong>
\nRyo Nemoto Department of Physics, Nagoya University<\/p>\n

[Past Members]<\/strong>
\nSunil Kumar Sake Yukawa Institute for Theoretical Physics, Kyoto University<\/p>\n","protected":false},"excerpt":{"rendered":"

Quantum Black Holes from Quantum Information (21H05184) Principal Investigator: Norihiro Iizuka Black Holes ar […]<\/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-506","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\/506","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=506"}],"version-history":[{"count":18,"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/posts\/506\/revisions"}],"predecessor-version":[{"id":6055,"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/posts\/506\/revisions\/6055"}],"wp:attachment":[{"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/media?parent=506"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/categories?post=506"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/tags?post=506"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}