{"id":"https://openalex.org/W7213264177","doi":"https://doi.org/10.48550/arxiv.2609.15764","title":"Low-Depth Initial-State Preparation for Ground-State Energy Estimation of Two-Dimensional Strongly Correlated Systems","display_name":"Low-Depth Initial-State Preparation for Ground-State Energy Estimation of Two-Dimensional Strongly Correlated Systems","publication_year":2026,"publication_date":"2026-09-14","ids":{"openalex":"https://openalex.org/W7213264177","doi":"https://doi.org/10.48550/arxiv.2609.15764"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2609.15764","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.15764","pdf_url":"https://arxiv.org/pdf/2609.15764","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"volume":null,"type":"preprint","is_traditional":true,"indexed_in":["arxiv","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2609.15764","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5113371084","display_name":"Ryo Watanabe","orcid":"https://orcid.org/0009-0001-3944-8131","observed_orcids":["https://orcid.org/0009-0001-3944-8131"]},"institutions":[{"id":"https://openalex.org/I98285908","display_name":"The University of Osaka","ror":"https://ror.org/035t8zc32","country_code":"JP","type":"education","lineage":["https://openalex.org/I98285908"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Watanabe, Ryo","raw_affiliation_strings":["Graduate School of Engineering Science , The University of Osaka , 1-3 Machikaneyama , Toyonaka , Osaka 560-8531 , Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Engineering Science , The University of Osaka , 1-3 Machikaneyama , Toyonaka , Osaka 560-8531 , Japan","institution_ids":["https://openalex.org/I98285908"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5023348679","display_name":"Keisuke Fujii","orcid":"https://orcid.org/0000-0002-4079-7582","observed_orcids":["https://orcid.org/0000-0002-4079-7582"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Fujii, Keisuke","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10682","display_name":"Quantum Computing Algorithms and Architecture","score":0.9750999808311462,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10682","display_name":"Quantum Computing Algorithms and Architecture","score":0.9750999808311462,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11804","display_name":"Quantum many-body systems","score":0.02250000089406967,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10425","display_name":"Cold Atom Physics and Bose-Einstein Condensates","score":0.00039999998989515007,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/initial-state-preparation","display_name":"initial state preparation","score":0.8450000286102295},{"id":"https://openalex.org/keywords/ground-state-energy-estimation","display_name":"ground state energy estimation","score":0.9760000109672546},{"id":"https://openalex.org/keywords/half-filled-hubbard-model","display_name":"half-filled Hubbard model","score":0.8640000224113464},{"id":"https://openalex.org/keywords/heisenberg-model","display_name":"Heisenberg model","score":0.7310000061988831},{"id":"https://openalex.org/keywords/schrieffer-wolff-transformation","display_name":"Schrieffer-Wolff transformation","score":0.9800000190734863},{"id":"https://openalex.org/keywords/shallow-quantum-circuits","display_name":"shallow quantum circuits","score":0.7720000147819519},{"id":"https://openalex.org/keywords/ground-state-fidelity","display_name":"ground-state fidelity","score":0.9120000004768372},{"id":"https://openalex.org/keywords/strongly-correlated-systems","display_name":"strongly correlated systems","score":0.6840000152587891},{"id":"https://openalex.org/keywords/two-dimensional-lattice","display_name":"two-dimensional lattice","score":0.7720000147819519},{"id":"https://openalex.org/keywords/parameter-transfer","display_name":"parameter transfer","score":0.6019999980926514}],"concepts":[{"id":"https://openalex.org/C106074065","wikidata":"https://www.wikidata.org/wiki/Q1571298","display_name":"Hubbard model","level":3,"score":0.6327000260353088},{"id":"https://openalex.org/C19499675","wikidata":"https://www.wikidata.org/wiki/Q232207","display_name":"Monte Carlo method","level":2,"score":0.5785999894142151},{"id":"https://openalex.org/C69523127","wikidata":"https://www.wikidata.org/wiki/Q4480008","display_name":"Ground state","level":2,"score":0.557699978351593},{"id":"https://openalex.org/C2781204021","wikidata":"https://www.wikidata.org/wiki/Q6497091","display_name":"Lattice (music)","level":2,"score":0.5534999966621399},{"id":"https://openalex.org/C121864883","wikidata":"https://www.wikidata.org/wiki/Q677916","display_name":"Statistical physics","level":1,"score":0.5407999753952026},{"id":"https://openalex.org/C2776459999","wikidata":"https://www.wikidata.org/wiki/Q2119376","display_name":"Fidelity","level":2,"score":0.5145000219345093},{"id":"https://openalex.org/C201665358","wikidata":"https://www.wikidata.org/wiki/Q899196","display_name":"Heisenberg model","level":3,"score":0.476500004529953},{"id":"https://openalex.org/C84114770","wikidata":"https://www.wikidata.org/wiki/Q46344","display_name":"Quantum","level":2,"score":0.46219998598098755},{"id":"https://openalex.org/C16016025","wikidata":"https://www.wikidata.org/wiki/Q3861408","display_name":"Quantum Monte Carlo","level":3,"score":0.4381999969482422},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.41940000653266907},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.4115000069141388},{"id":"https://openalex.org/C134146338","wikidata":"https://www.wikidata.org/wiki/Q1815901","display_name":"Electronic circuit","level":2,"score":0.39719998836517334},{"id":"https://openalex.org/C113364801","wikidata":"https://www.wikidata.org/wiki/Q26674","display_name":"High fidelity","level":2,"score":0.37470000982284546},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.3531000018119812},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.32710000872612},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3231000006198883},{"id":"https://openalex.org/C58053490","wikidata":"https://www.wikidata.org/wiki/Q176555","display_name":"Quantum computer","level":3,"score":0.319599986076355},{"id":"https://openalex.org/C167928553","wikidata":"https://www.wikidata.org/wiki/Q1376021","display_name":"Estimation theory","level":2,"score":0.31310001015663147},{"id":"https://openalex.org/C33062035","wikidata":"https://www.wikidata.org/wiki/Q3296863","display_name":"Singlet state","level":3,"score":0.29089999198913574},{"id":"https://openalex.org/C2778652916","wikidata":"https://www.wikidata.org/wiki/Q7915793","display_name":"Variational Monte Carlo","level":4,"score":0.27970001101493835},{"id":"https://openalex.org/C48103436","wikidata":"https://www.wikidata.org/wiki/Q599031","display_name":"State (computer science)","level":2,"score":0.27320000529289246},{"id":"https://openalex.org/C124148022","wikidata":"https://www.wikidata.org/wiki/Q2122210","display_name":"Quantum circuit","level":5,"score":0.27070000767707825},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2639000117778778},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.2522999942302704}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:arXiv.org:2609.15764","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.15764","pdf_url":"https://arxiv.org/pdf/2609.15764","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"doi:10.48550/arxiv.2609.15764","doi":"https://doi.org/10.48550/arxiv.2609.15764","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2609.15764","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2609.15764","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.15764","pdf_url":"https://arxiv.org/pdf/2609.15764","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[],"study_designs":[],"awards":[{"id":"https://openalex.org/G1662707003","display_name":"\u5b9f\u6a5f\u91cf\u5b50\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u4e0a\u306e\u30ce\u30a4\u30ba\u30e2\u30c7\u30eb\u306b\u304a\u3051\u308b\u9ad8\u6027\u80fd\u91cf\u5b50\u8aa4\u308a\u8a02\u6b63\u7b26\u53f7\u306e\u958b\u767a","funder_award_id":"25KJ1773","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"},{"id":"https://openalex.org/G4627739467","display_name":null,"funder_award_id":"JP-MXS0120319794","funder_id":"https://openalex.org/F4320320912","funder_display_name":"Ministry of Education, Culture, Sports, Science and Technology"},{"id":"https://openalex.org/G6938554167","display_name":null,"funder_award_id":"JPMJCR24I3","funder_id":"https://openalex.org/F4320338075","funder_display_name":"Core Research for Evolutional Science and Technology"}],"funders":[{"id":"https://openalex.org/F4320320912","display_name":"Ministry of Education, Culture, Sports, Science and Technology","ror":"https://ror.org/048rj2z13"},{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"},{"id":"https://openalex.org/F4320338075","display_name":"Core Research for Evolutional Science and Technology","ror":"https://ror.org/00097mb19"},{"id":"https://openalex.org/F4320338239","display_name":"Co-creation place formation support program","ror":null}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7213264177.pdf","grobid_xml":"https://content.openalex.org/works/W7213264177.grobid-xml"},"referenced_works_count":14,"referenced_works":["https://openalex.org/W2143677375","https://openalex.org/W2889819810","https://openalex.org/W4389115321","https://openalex.org/W4414946197","https://openalex.org/W4415130567","https://openalex.org/W7135183226","https://openalex.org/W7136451452","https://openalex.org/W7140283434","https://openalex.org/W7150756816","https://openalex.org/W7154970790","https://openalex.org/W7155412522","https://openalex.org/W7167661984","https://openalex.org/W7169623149","https://openalex.org/W7211978776"],"related_works":["https://openalex.org/W7220985692","https://openalex.org/W4390918794","https://openalex.org/W3034102881","https://openalex.org/W7135183226","https://openalex.org/W4385986939","https://openalex.org/W4366218055","https://openalex.org/W4353007477","https://openalex.org/W4404993429","https://openalex.org/W4410192047","https://openalex.org/W3159839358"],"abstract_inverted_index":{"Quantum":[0],"algorithms":[1],"for":[2,24,177],"ground-state":[3,78,92,109],"energy":[4,93],"estimation":[5],"require":[6],"initial":[7],"states":[8],"with":[9],"non-negligible":[10],"fidelity":[11,79,110],"to":[12,63,66,128,173],"the":[13,25,46,51,77,91,102,107,112,122,137,146,152,165],"ground":[14,36],"state.":[15,115],"Guided":[16],"by":[17,30],"classical":[18,140],"simulations,":[19,82],"we":[20,54],"design":[21,129],"shallow":[22,130],"circuits":[23,132],"two-dimensional":[26],"half-filled":[27],"Hubbard":[28,108,131],"model":[29],"first":[31],"preparing":[32],"an":[33],"approximate":[34],"Heisenberg":[35,52,114,118],"state":[37],"and":[38,88,94],"then":[39],"applying":[40],"charge-fluctuation":[41],"gates":[42,104],"derived":[43],"directly":[44],"from":[45,59],"Schrieffer-Wolff":[47],"(SW)":[48],"generator.":[49],"For":[50,142],"model,":[53],"demonstrate":[55],"effective":[56],"parameter":[57,119],"transfer":[58,120],"a":[60,143,171],"$4\\times4$":[61,98],"lattice":[62],"lattices":[64,135],"up":[65],"$10\\times10$":[67,144],"without":[68],"further":[69],"optimization.":[70],"We":[71],"obtain":[72],"promising":[73],"lower":[74],"bounds":[75],"on":[76,133,151],"using":[80],"tensor-network":[81],"variational":[83],"Monte":[84],"Carlo":[85],"reference":[86],"states,":[87],"estimates":[89],"of":[90,111,124,139,154],"singlet":[95],"gap.":[96],"Exact":[97],"calculations":[99],"show":[100],"that":[101],"SW":[103],"substantially":[105],"improve":[106],"embedded":[113],"The":[116],"successful":[117],"supports":[121],"use":[123],"these":[125],"small-lattice":[126],"results":[127,169],"larger":[134],"beyond":[136],"reach":[138],"simulations.":[141],"lattice,":[145],"estimated":[147],"preparation":[148,176],"cost":[149],"is":[150,162],"order":[153],"$10^5$":[155],"$T$":[156],"gates,":[157],"including":[158],"Clifford+$T$":[159],"synthesis,":[160],"which":[161],"well":[163],"within":[164],"megaquop":[166],"regime.":[167],"These":[168],"offer":[170],"route":[172],"low-cost":[174],"initial-state":[175],"ground-starongly":[178],"correlated":[179],"systems.":[180]},"counts_by_year":[],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2026-09-16T00:00:00"}
