{"id":534,"date":"2021-11-10T13:51:33","date_gmt":"2021-11-10T04:51:33","guid":{"rendered":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/?p=534"},"modified":"2026-02-25T14:40:59","modified_gmt":"2026-02-25T05:40:59","slug":"outline-of-project-c02","status":"publish","type":"post","link":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/en\/outline-of-project-c02\/","title":{"rendered":"Outline of Project C02"},"content":{"rendered":"

Quantum cosmology experiments in quantum Hall systems (21H05188)<\/h2>\n
\n
Principal Investigator: Go Yusa<\/div>\n
\"\"<\/div>\n<\/div>\n

How did our universe develop from its earliest moments? This is the major question of quantum cosmology, and to answer it great efforts have been made both in theory and in attempts to verify theory by observation of cosmic background radiation. It would be ideal if we could reproduce the origin and evolution of the universe in a laboratory and thereby experimentally verify the theory by controlling key parameters. Therefore, in this research project we aim at implementing quantum cosmology in the laboratory in a toy model which is a theoretically equivalent physical system to the early universe. In this way we seek to provide a rich playground for verification of quantum cosmology theory.
\nThe actual physical system that we deal with comprises electrons in semiconductors. Semiconductor industry consists of state-of\u00ac-the-art modern technologies such as ultra-high quality crystal growth technology, fine process technology, and electronics. In this project, using such mature technologies as a base, we implement toy models of quantum cosmology on a semiconductor chip using quantum Hall edges, which are an intriguing quantum many-body system. Through experiment and theory, we aim at unveiling the mechanism of the origin of the universe. More specifically, (1) we will establish advanced quantum measurement techniques and perform experiments on quantum Hall edges, and (2) examine quantum cosmology by collaborating with various fields of researchers from particle theory, mathematical physics, solid-state theory, quantum information, and cosmology<\/p>\n

\"\"<\/p>\n

Members in C02<\/h3>\n

[Principal Investigator]
\nGo Yusa<\/a> Department of Physics, Tohoku University<\/p>\n

[Co-Investigator]
\nNaokazu Shibata<\/a> Department of Physics, Tohoku University
\nMasahiro Hotta<\/a> Department of Physics, Tohoku University
\nKazuya Yonekura<\/a> Department of Physics, Tohoku University<\/p>\n

[Research Collaborators]
\nTakaaki Mano<\/a> National Institute for Materials Science
\nKazuhiro Yamamoto<\/a> Department of Physics, Kyushu University
\nYasusada Nambu<\/a> Department of Physics, Nagoya University
\nChisa Hotta<\/a> Graduate School of Arts and Sciences, University of Tokyo
\nKazunori Nakayama Department of Physics, Tohoku University
\nVladimir Umansky<\/a> Weizmann Institute of Science
\nKoji Yamaguchi Faculty of Information Science and Electrical Engineering, Kyushu University
\nKenichi Sasaki<\/a> NTT Basic Research Laboratories
\nKazuaki Takasan Department of Physics, University of Tokyo
\nYuki Sugiyama<\/a> The Institute for Solid State Physics, the University of Tokyo, Specially Appointed Research Fellow
\nNicholas Moore Department of Physics, Tohoku University\n<\/p>\n

[Students]
\nYuka Kaku<\/a> Department of Physics, Nagoya University
\nYuki Osawa<\/a> Department of Physics, Nagoya University
\nYunhyon Jeong<\/a> Department of Physics, Tohoku University
\nYuichi Sata<\/a> Department of Physics, Tohoku University
\nTakahiro Yokokura<\/a> Department of Physics, Tohoku University
\nKazunori Akiyama Department of Physics, Tohoku University<\/span>
\nHiromasa Tajima Department of Physics, Nagoya University
\nMasaki Fukuda Department of Physics, Tohoku University
\nQuentin France Department of Physics and Mathematics, Sorbonne University
\nKodai Sugizaki Department of Physics, Tohoku University
\nKomei Kobayashi Department of Physics, Tohoku University
\nYuma Hiraga Department of Physics, Tohoku University
\nTsubasa Sugeno Department of Physics, Tohoku University
\nTaiki Karezaki Department of Physics, Tohoku University
\nRiku Yoshimoto Department of Physics, Nagoya University<\/p>\n

[Past Members]<\/strong>
\nDonghyeon Kim<\/a> Department of Physics, Tohoku University
\nJun Tsujimura Department of Physics, Nagoya University
\nAkinori Kamiyama Department of Physics, Tohoku University
\nIkuya Marumoto Department of Physics, Tohoku University
\nYasuaki Hayafuchi Department of Physics, Tohoku University
\nRyota Konno Department of Physics, Tohoku University
\nReiji Kawada Department of Physics, Tohoku University
\nYutaro Takahashi Department of Physics, Tohoku University
\nFelix Borchers Heidelberg University
\nShun Kobayashi<\/a> Department of Physics, Tohoku University
\nKento Watanabe Department of Physics, Tohoku University
\nAyaka Kondo<\/a> Department of Physics, Tohoku University
\nKairi Kaneta<\/a> Department of Physics, Tohoku University
\nTaesung Koh<\/a> Department of Physics, Tohoku University
\nTomoya Suzuki<\/a> Department of Physics, Tohoku University<\/p>\n","protected":false},"excerpt":{"rendered":"

Quantum cosmology experiments in quantum Hall systems (21H05188) Principal Investigator: Go Yusa How did our u […]<\/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-534","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\/534","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=534"}],"version-history":[{"count":42,"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/posts\/534\/revisions"}],"predecessor-version":[{"id":5378,"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/posts\/534\/revisions\/5378"}],"wp:attachment":[{"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/media?parent=534"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/categories?post=534"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www2.yukawa.kyoto-u.ac.jp\/~extremeuniverse\/wp-json\/wp\/v2\/tags?post=534"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}