{"created":"2025-01-19T01:14:06.378095+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00213200","sets":["1164:10193:10565:10720"]},"path":["10720"],"owner":"44499","recid":"213200","title":["Generalized quantum subspace expansion method for error mitigation"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-10-07"},"_buckets":{"deposit":"503ba9b2-2aa1-4646-a25a-dab44fb4d373"},"_deposit":{"id":"213200","pid":{"type":"depid","value":"213200","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"Generalized quantum subspace expansion method for error mitigation","author_link":["545069","545076","545073","545075","545066","545077","545068","545071","545072","545074","545067","545070"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Generalized quantum subspace expansion method for error mitigation"},{"subitem_title":"Generalized quantum subspace expansion method for error mitigation","subitem_title_language":"en"}]},"item_type_id":"4","publish_date":"2021-10-07","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"Department of Applied Physics, University of Tokyo／Theoretical Quantum Physics Laboratory, RIKEN Cluster for Pioneering Research (CPR)"},{"subitem_text_value":"Research Center for Emerging Computing Technologies, National Institute of Advanced Industrial Science and Technology (AIST)"},{"subitem_text_value":"Research Center for Emerging Computing Technologies, National Institute of Advanced Industrial Science and Technology (AIST)"},{"subitem_text_value":"NTT Computer and Data Science Laboratories, NTT Corporation"},{"subitem_text_value":"NTT Computer and Data Science Laboratories, NTT Corporation／JST, PRESTO"},{"subitem_text_value":"NTT Computer and Data Science Laboratories, NTT Corporation"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Department of Applied Physics, University of Tokyo / Theoretical Quantum Physics Laboratory, RIKEN Cluster for Pioneering Research (CPR)","subitem_text_language":"en"},{"subitem_text_value":"Research Center for Emerging Computing Technologies, National Institute of Advanced Industrial Science and Technology (AIST)","subitem_text_language":"en"},{"subitem_text_value":"Research Center for Emerging Computing Technologies, National Institute of Advanced Industrial Science and Technology (AIST)","subitem_text_language":"en"},{"subitem_text_value":"NTT Computer and Data Science Laboratories, NTT Corporation","subitem_text_language":"en"},{"subitem_text_value":"NTT Computer and Data Science Laboratories, NTT Corporation / JST, PRESTO","subitem_text_language":"en"},{"subitem_text_value":"NTT Computer and Data Science Laboratories, NTT Corporation","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/213200/files/IPSJ-QS21004006.pdf","label":"IPSJ-QS21004006.pdf"},"date":[{"dateType":"Available","dateValue":"2023-10-07"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-QS21004006.pdf","filesize":[{"value":"1.8 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Suzuki"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Suguru, Endo"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Nobuyuki, Yoshioka","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hideaki, Hakoshima","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yuichiro, Matsuzaki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yuuki, Tokunaga","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yasunari, Suzuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Suguru, Endo","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12894105","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2435-6492","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"The control over the effect of noise is crucial for extracting reliable results from noisy quantum computers. Since current available quantum resources are not fully fault-tolerant, it is essential to develop practical quantum error mitigation (QEM) methods to compensate for unwanted computation errors. Here, we propose a novel error mitigation scheme: the generalized quantum subspace expansion method that can mitigate dominant errors in quantum computers. Exploitation of the substantially extended subspace allows us to efficiently mitigate the noise present in the spectra of a given Hamiltonian in a noise-agnostic way. We found two practical subspaces for practical error mitigation: the subspaces spanned by powers of the noisy state ρm and a set of error-boosted states. We performed numerical simulations for both subspaces so that we verified suppression of errors by orders of magnitude. Out protocol inherits positive aspects of previous error-agnostic QEM techniques while significantly overcoming their drawbacks.","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"The control over the effect of noise is crucial for extracting reliable results from noisy quantum computers. Since current available quantum resources are not fully fault-tolerant, it is essential to develop practical quantum error mitigation (QEM) methods to compensate for unwanted computation errors. Here, we propose a novel error mitigation scheme: the generalized quantum subspace expansion method that can mitigate dominant errors in quantum computers. Exploitation of the substantially extended subspace allows us to efficiently mitigate the noise present in the spectra of a given Hamiltonian in a noise-agnostic way. We found two practical subspaces for practical error mitigation: the subspaces spanned by powers of the noisy state ρm and a set of error-boosted states. We performed numerical simulations for both subspaces so that we verified suppression of errors by orders of magnitude. Out protocol inherits positive aspects of previous error-agnostic QEM techniques while significantly overcoming their drawbacks.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"10","bibliographic_titles":[{"bibliographic_title":"量子ソフトウェア（QS）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2021-10-07","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"6","bibliographicVolumeNumber":"2021-QS-4"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":213200,"updated":"2025-01-19T17:14:10.964935+00:00","links":{}}