{"created":"2023-06-20T16:49:49.098080+00:00","id":22121,"links":{},"metadata":{"_buckets":{"deposit":"f99dbad3-61fa-43ee-8c0b-7e36b031f2bd"},"_deposit":{"created_by":3,"id":"22121","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"22121"},"status":"published"},"_oai":{"id":"oai:kindai.repo.nii.ac.jp:00022121","sets":["14:2667:4710"]},"author_link":["43380"],"control_number":"22121","item_8_biblio_info_21":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"19","bibliographicPageStart":"1","bibliographic_titles":[{"bibliographic_title":"科学研究費助成事業研究成果報告書 (2020)"}]}]},"item_8_description_25":{"attribute_name":"リンクURL","attribute_value_mlt":[{"subitem_description":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18K03492/","subitem_description_type":"Other"}]},"item_8_description_33":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"研究成果の概要（和文）：ある量子多体系が量子重力理論とホログラフィー的な意味での双対を持つことを判定する方法の一つとして、量子ダイナミクスにおけるカオス的性質を特徴付ける量子的リヤプノフ指数の温度依存性を調べることが有効であると予想されている。本研究では、量子多体系の有限温度ダイナミクスを厳密に数値計算するための行列積状態を用いた手法の計算効率を大幅に改善することに成功した。また、量子重力理論と双対になる平坦バンド中のフェルミ気体の生成に利用できる、幾何学的フラストレーションと負の絶対温度を持つ量子縮退気体の生成方法を提案した。研究成果の概要（英文）：It is conjectured that investigating the temperature dependence of the quantum Lyapunov exponent, which characterizes the chaotic nature of quantum dynamics, is useful for judging whether or not a quantum many-body system is a holographically dual to a quantum gravity system. In this study, we have improved the numerical efficiency of methods based on the use of matrix product states for computing quantum many-body systems at finite temperatures. Moreover, we have proposed a way for creating quantum-degenerate gases at negative absolute temperatures with a geometric frustration, which may be used for realizing a Fermi gas on a flat band that is conjectured to be dual to a quantum gravity system.","subitem_description_type":"Abstract"}]},"item_8_description_36":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"研究種目：基礎研究(C);  研究期間：2018～2020;   課題番号：18K03492;   研究分野：量子エレクトロニクス;   科研費の分科・細目：","subitem_description_type":"Other"}]},"item_8_description_37":{"attribute_name":"資源タイプ(WEKO2)","attribute_value_mlt":[{"subitem_description":"Research Paper","subitem_description_type":"Other"}]},"item_8_description_41":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_8_publisher_14":{"attribute_name":"出版者 名前","attribute_value_mlt":[{"subitem_publisher":"近畿大学"}]},"item_8_text_10":{"attribute_name":"著者 役割","attribute_value_mlt":[{"subitem_text_value":"研究代表者"}]},"item_8_text_7":{"attribute_name":"著者(英)","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Danshita, Ippei"}]},"item_8_text_8":{"attribute_name":"著者 所属","attribute_value_mlt":[{"subitem_text_value":"近畿大学理工学部; 准教授"}]},"item_8_text_9":{"attribute_name":"著者所属(翻訳)","attribute_value_mlt":[{"subitem_text_value":"Kindai University"}]},"item_8_version_type_12":{"attribute_name":"版","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_be7fb7dd8ff6fe43","subitem_version_type":"NA"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"段下, 一平"},{"creatorName":"ダンシタ, イッペイ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{},{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2021-11-08"}],"displaytype":"detail","filename":"18K03492seika.pdf","filesize":[{"value":"103.6 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"18K03492seika.pdf","url":"https://kindai.repo.nii.ac.jp/record/22121/files/18K03492seika.pdf"},"version_id":"2615f9b1-2e01-4888-953c-2a1f91a5c886"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"冷却気体","subitem_subject_scheme":"Other"},{"subitem_subject":"光格子","subitem_subject_scheme":"Other"},{"subitem_subject":"量子多体系","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"research report","resourceuri":"http://purl.org/coar/resource_type/c_18ws"}]},"item_title":"ホログラフィー原理と光格子中の冷却気体の協奏による量子重力実現の提案","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ホログラフィー原理と光格子中の冷却気体の協奏による量子重力実現の提案","subitem_title_language":"ja"},{"subitem_title":"Proposal for realizing quantum gravity by means of the holographic principle and an optical lattice loaded with ultracold gases","subitem_title_language":"en"}]},"item_type_id":"8","owner":"3","path":["4710"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2021-11-08"},"publish_date":"2021-11-08","publish_status":"0","recid":"22121","relation_version_is_last":true,"title":["ホログラフィー原理と光格子中の冷却気体の協奏による量子重力実現の提案"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-08-02T07:50:24.712040+00:00"}