{"id":"https://openalex.org/W4414405706","doi":"https://doi.org/10.1109/qccl65142.2025.11158252","title":"Efficient Learning of Arbitrary Single-Copy Quantum States","display_name":"Efficient Learning of Arbitrary Single-Copy Quantum States","publication_year":2025,"publication_date":"2025-06-25","ids":{"openalex":"https://openalex.org/W4414405706","doi":"https://doi.org/10.1109/qccl65142.2025.11158252"},"language":"en","primary_location":{"id":"doi:10.1109/qccl65142.2025.11158252","doi":"https://doi.org/10.1109/qccl65142.2025.11158252","is_oa":false,"landing_page_url":"https://doi.org/10.1109/qccl65142.2025.11158252","pdf_url":null,"source":{"id":"https://openalex.org/S7407115550","display_name":"IEEE International Conference on Quantum Control, Computing and Learning (qCCL)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 IEEE International Conference on Quantum Control, Computing and Learning (qCCL)","raw_type":"proceedings-article"},"volume":null,"type":"conference-paper","indexed_in":["arxiv","crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2310.19748","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5001602705","display_name":"Shibdas Roy","orcid":"https://orcid.org/0000-0002-9892-4070","observed_orcids":["https://orcid.org/0000-0002-9892-4070"]},"institutions":[{"id":"https://openalex.org/I4210159890","display_name":"TCG Crest","ror":"https://ror.org/05h2r8y34","country_code":"IN","type":"other","lineage":["https://openalex.org/I4210159890"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Shibdas Roy","raw_affiliation_strings":["Centre for Quantum Engineering, Research and Education (CQuERE), TCG Centres for Research and Education in Science and Technology (TCG CREST),Kolkata,700091"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Centre for Quantum Engineering, Research and Education (CQuERE), TCG Centres for Research and Education in Science and Technology (TCG CREST),Kolkata,700091","institution_ids":["https://openalex.org/I4210159890"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025624200","display_name":"Filippo Caruso","orcid":"https://orcid.org/0000-0002-8366-4296","observed_orcids":["https://orcid.org/0000-0002-8366-4296"]},"institutions":[{"id":"https://openalex.org/I45084792","display_name":"University of Florence","ror":"https://ror.org/04jr1s763","country_code":"IT","type":"education","lineage":["https://openalex.org/I45084792"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Filippo Caruso","raw_affiliation_strings":["University of Florence,Department of Physics and Astronomy,Sesto Fiorentino,Italy,50019"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Florence,Department of Physics and Astronomy,Sesto Fiorentino,Italy,50019","institution_ids":["https://openalex.org/I45084792"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5104250216","display_name":"Srushti Patil","orcid":"https://orcid.org/0000-0001-6853-0604","observed_orcids":["https://orcid.org/0000-0001-6853-0604"]},"institutions":[{"id":"https://openalex.org/I124055696","display_name":"University of Copenhagen","ror":"https://ror.org/035b05819","country_code":"DK","type":"education","lineage":["https://openalex.org/I124055696"]},{"id":"https://openalex.org/I2801134892","display_name":"Novo Nordisk Foundation","ror":"https://ror.org/04txyc737","country_code":"DK","type":"facility","lineage":["https://openalex.org/I2801134892"]}],"countries":["DK"],"is_corresponding":false,"raw_author_name":"Srushti Patil","raw_affiliation_strings":["Novo Nordisk Foundation Quantum Computing Programme, Niels Bohr Institute, University of Copenhagen,K&#x00F8;benhavn &#x00D8;,Denmark,2100"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Novo Nordisk Foundation Quantum Computing Programme, Niels Bohr Institute, University of Copenhagen,K&#x00F8;benhavn &#x00D8;,Denmark,2100","institution_ids":["https://openalex.org/I124055696","https://openalex.org/I2801134892"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5056377438","display_name":"Anumita Mukhopadhyay","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210159890","display_name":"TCG Crest","ror":"https://ror.org/05h2r8y34","country_code":"IN","type":"other","lineage":["https://openalex.org/I4210159890"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Anumita Mukhopadhyay","raw_affiliation_strings":["Centre for Quantum Engineering, Research and Education (CQuERE), TCG Centres for Research and Education in Science and Technology (TCG CREST),Kolkata,700091"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Centre for Quantum Engineering, Research and Education (CQuERE), TCG Centres for Research and Education in Science and Technology (TCG CREST),Kolkata,700091","institution_ids":["https://openalex.org/I4210159890"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.22192335,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"65","last_page":"70"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10682","display_name":"Quantum Computing Algorithms and Architecture","score":0.9688000082969666,"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":0.9688000082969666,"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/T10020","display_name":"Quantum Information and Cryptography","score":0.0284000001847744,"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/T10622","display_name":"Quantum Mechanics and Applications","score":0.00139999995008111,"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/quantum-state-tomography","display_name":"quantum state tomography","score":0.9610000252723694},{"id":"https://openalex.org/keywords/quantum-image-processing","display_name":"quantum image processing","score":0.7020000219345093},{"id":"https://openalex.org/keywords/density-matrix-estimation","display_name":"density matrix estimation","score":0.8920000195503235},{"id":"https://openalex.org/keywords/quantum-state-preparation-and-measurement","display_name":"quantum state preparation and measurement","score":0.39399999380111694}],"concepts":[{"id":"https://openalex.org/C15706264","wikidata":"https://www.wikidata.org/wiki/Q230883","display_name":"Quantum state","level":3,"score":0.620199978351593},{"id":"https://openalex.org/C166834278","wikidata":"https://www.wikidata.org/wiki/Q4218494","display_name":"Quantum tomography","level":4,"score":0.6161999702453613},{"id":"https://openalex.org/C48103436","wikidata":"https://www.wikidata.org/wiki/Q599031","display_name":"State (computer science)","level":2,"score":0.5580000281333923},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5494999885559082},{"id":"https://openalex.org/C192122513","wikidata":"https://www.wikidata.org/wiki/Q2835770","display_name":"Quantum phase estimation algorithm","level":5,"score":0.536300003528595},{"id":"https://openalex.org/C160633673","wikidata":"https://www.wikidata.org/wiki/Q355198","display_name":"Pixel","level":2,"score":0.48649999499320984},{"id":"https://openalex.org/C84114770","wikidata":"https://www.wikidata.org/wiki/Q46344","display_name":"Quantum","level":2,"score":0.4668999910354614},{"id":"https://openalex.org/C137019171","wikidata":"https://www.wikidata.org/wiki/Q2623817","display_name":"Quantum algorithm","level":3,"score":0.45579999685287476},{"id":"https://openalex.org/C51003876","wikidata":"https://www.wikidata.org/wiki/Q1536431","display_name":"Quantum error correction","level":4,"score":0.44699999690055847},{"id":"https://openalex.org/C169699857","wikidata":"https://www.wikidata.org/wiki/Q2122243","display_name":"Quantum information","level":3,"score":0.43639999628067017},{"id":"https://openalex.org/C9417928","wikidata":"https://www.wikidata.org/wiki/Q1070689","display_name":"Image processing","level":3,"score":0.42289999127388},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.4228000044822693},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4178999960422516},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.39739999175071716},{"id":"https://openalex.org/C56911000","wikidata":"https://www.wikidata.org/wiki/Q831774","display_name":"Density matrix","level":3,"score":0.36559998989105225},{"id":"https://openalex.org/C121864883","wikidata":"https://www.wikidata.org/wiki/Q677916","display_name":"Statistical physics","level":1,"score":0.36230000853538513},{"id":"https://openalex.org/C58053490","wikidata":"https://www.wikidata.org/wiki/Q176555","display_name":"Quantum computer","level":3,"score":0.35010001063346863},{"id":"https://openalex.org/C43682372","wikidata":"https://www.wikidata.org/wiki/Q7269080","display_name":"Quantum operation","level":4,"score":0.3287000060081482},{"id":"https://openalex.org/C187486625","wikidata":"https://www.wikidata.org/wiki/Q2122176","display_name":"Quantum channel","level":4,"score":0.32010000944137573},{"id":"https://openalex.org/C11255438","wikidata":"https://www.wikidata.org/wiki/Q7269085","display_name":"Quantum process","level":4,"score":0.3156000077724457},{"id":"https://openalex.org/C106487976","wikidata":"https://www.wikidata.org/wiki/Q685816","display_name":"Matrix (chemical analysis)","level":2,"score":0.3046000003814697},{"id":"https://openalex.org/C2778926657","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum system","level":3,"score":0.2955000102519989},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.28369998931884766},{"id":"https://openalex.org/C186468114","wikidata":"https://www.wikidata.org/wiki/Q836478","display_name":"Quantum network","level":4,"score":0.2567000091075897}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1109/qccl65142.2025.11158252","doi":"https://doi.org/10.1109/qccl65142.2025.11158252","is_oa":false,"landing_page_url":"https://doi.org/10.1109/qccl65142.2025.11158252","pdf_url":null,"source":{"id":"https://openalex.org/S7407115550","display_name":"IEEE International Conference on Quantum Control, Computing and Learning (qCCL)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 IEEE International Conference on Quantum Control, Computing and Learning (qCCL)","raw_type":"proceedings-article"},{"id":"pmh:oai:arXiv.org:2310.19748","doi":null,"is_oa":true,"landing_page_url":"http://arxiv.org/abs/2310.19748","pdf_url":"https://arxiv.org/pdf/2310.19748","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":"pmh:oai:pure.atira.dk:openaire_cris_publications/1adffd89-1a7d-417a-8022-e0c625c2e73b","doi":null,"is_oa":false,"landing_page_url":"https://researchprofiles.ku.dk/da/publications/1adffd89-1a7d-417a-8022-e0c625c2e73b","pdf_url":null,"source":{"id":"https://openalex.org/S4306401983","display_name":"Research at the University of Copenhagen (University of Copenhagen)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I124055696","host_organization_name":"University of Copenhagen","host_organization_lineage":["https://openalex.org/I124055696"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Roy, S, Caruso, F, Patil, S & Mukhopadhyay, A 2025, Efficient Learning of Arbitrary Single-Copy Quantum States. in Proceedings of 2025 IEEE International Conference on Quantum Control, Computing and Learning, qCCL 2025. Institute of Electrical and Electronics Engineers Inc., pp. 65-70, 2025 IEEE International Conference on Quantum Control, Computing and Learning, qCCL 2025, Hong Kong, Hong Kong, 25/06/2025. https://doi.org/10.1109/qCCL65142.2025.11158252","raw_type":"info:eu-repo/semantics/conferenceObject"},{"id":"doi:10.48550/arxiv.2310.19748","doi":"https://doi.org/10.48550/arxiv.2310.19748","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2310.19748","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":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2310.19748","doi":null,"is_oa":true,"landing_page_url":"http://arxiv.org/abs/2310.19748","pdf_url":"https://arxiv.org/pdf/2310.19748","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/G434337789","display_name":null,"funder_award_id":"HORIZON2020","funder_id":"https://openalex.org/F4320320300","funder_display_name":"European Commission"},{"id":"https://openalex.org/G87309138","display_name":"Photonic and nAnomeTric High-sensitivity biO-Sensing","funder_award_id":"828946","funder_id":"https://openalex.org/F4320320300","funder_display_name":"European Commission"}],"funders":[{"id":"https://openalex.org/F4320320300","display_name":"European Commission","ror":"https://ror.org/00k4n6c32"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4414405706.pdf","grobid_xml":"https://content.openalex.org/works/W4414405706.grobid-xml"},"referenced_works_count":24,"referenced_works":["https://openalex.org/W1492999010","https://openalex.org/W1535304317","https://openalex.org/W1542925787","https://openalex.org/W1598056440","https://openalex.org/W1971384536","https://openalex.org/W1975366306","https://openalex.org/W1988369744","https://openalex.org/W2064906820","https://openalex.org/W2121981260","https://openalex.org/W2299010624","https://openalex.org/W2405352905","https://openalex.org/W2490964415","https://openalex.org/W2748882006","https://openalex.org/W2754535787","https://openalex.org/W2995849402","https://openalex.org/W2996599572","https://openalex.org/W2998842053","https://openalex.org/W3090333043","https://openalex.org/W3194802243","https://openalex.org/W3197536459","https://openalex.org/W4205430340","https://openalex.org/W4211127533","https://openalex.org/W4283314683","https://openalex.org/W4409131455"],"related_works":["https://openalex.org/W3097167319","https://openalex.org/W6891827527","https://openalex.org/W2082822469","https://openalex.org/W1944079109","https://openalex.org/W4410021748","https://openalex.org/W3039794624","https://openalex.org/W3176786781","https://openalex.org/W2771821743","https://openalex.org/W4283314683","https://openalex.org/W4316652462"],"abstract_inverted_index":{"Quantum":[0],"state":[1,22,24,38,51,74,132],"tomography":[2],"is":[3,14,52,115],"the":[4,18,35,40,50,72,76,83,87,91,98,131,134,141,151,161,171,175],"problem":[5],"of":[6,39,47,49,70,75,82,90,130,133,150,160,174],"estimating":[7],"a":[8,65,79,120,157],"given":[9],"quantum":[10,19,37,109,121],"state.":[11,92,177],"Usually,":[12],"it":[13,114],"required":[15,117],"to":[16,30,33,62,118,139,168],"run":[17,159],"experiment":[20,77,124,164],"-":[21,27],"preparation,":[23],"evolution,":[25],"measurement":[26],"several":[28],"times":[29],"be":[31,103,154],"able":[32],"estimate":[34,63,170],"output":[36,73,135],"experiment,":[41],"because":[42],"an":[43,59,112],"exponentially":[44],"high":[45],"number":[46],"copies":[48,129],"required.":[53],"In":[54],"this":[55],"work,":[56],"we":[57],"present":[58],"efficient":[60],"algorithm":[61],"with":[64],"small":[66],"but":[67],"nonzero":[68],"probability":[69],"error":[71],"using":[78],"single":[80,158],"copy":[81],"state,":[84,100],"without":[85],"knowing":[86],"evolution":[88],"dynamics":[89],"It":[93],"also":[94],"does":[95],"not":[96],"destroy":[97],"original":[99],"which":[101],"can":[102,153],"recovered":[104],"easily":[105],"for":[106],"any":[107],"further":[108],"processing.":[110],"As":[111],"example,":[113],"usually":[116],"repeat":[119],"image":[122,136,152,162,176],"processing":[123,163],"many":[125,128],"times,":[126],"since":[127],"are":[137],"needed":[138],"extract":[140],"information":[142,148],"from":[143,156],"all":[144],"its":[145],"pixels.":[146],"The":[147],"from$\\mathcal{N}$pixels":[149],"inferred":[155],"in":[165],"our":[166],"algorithm,":[167],"efficiently":[169],"density":[172],"matrix":[173]},"counts_by_year":[],"updated_date":"2026-10-28T10:33:24.094632","created_date":"2025-10-10T00:00:00"}
