{"id":"https://openalex.org/W2024926212","doi":"https://doi.org/10.1103/physrevlett.99.123601","title":"Spectral Density Matrix of a Single Photon Measured","display_name":"Spectral Density Matrix of a Single Photon Measured","publication_year":2007,"publication_date":"2007-09-17","ids":{"openalex":"https://openalex.org/W2024926212","doi":"https://doi.org/10.1103/physrevlett.99.123601","mag":"2024926212","pmid":"https://pubmed.ncbi.nlm.nih.gov/17930501"},"language":"en","primary_location":{"id":"doi:10.1103/physrevlett.99.123601","doi":"https://doi.org/10.1103/physrevlett.99.123601","is_oa":false,"landing_page_url":"https://doi.org/10.1103/physrevlett.99.123601","pdf_url":null,"source":{"id":"https://openalex.org/S24807848","display_name":"Physical Review Letters","issn_l":"0031-9007","issn":["0031-9007","1079-7114","1092-0145"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","jufo-3","ki-jl-2","medline","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320261","host_organization_name":"American Physical Society","host_organization_lineage":["https://openalex.org/P4310320261"],"host_organization_lineage_names":["American Physical Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Physical Review Letters","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["arxiv","crossref","datacite","pubmed"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/quant-ph/0702200","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5011867050","display_name":"Wojciech Wasilewski","orcid":"https://orcid.org/0000-0003-3030-3187","observed_orcids":["https://orcid.org/0000-0003-3030-3187"]},"institutions":[{"id":"https://openalex.org/I3019271933","display_name":"Nicolaus Copernicus University","ror":"https://ror.org/0102mm775","country_code":"PL","type":"education","lineage":["https://openalex.org/I3019271933"]}],"countries":["PL"],"is_corresponding":false,"raw_author_name":"Wojciech Wasilewski","raw_affiliation_strings":["Institute of Physics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Toru\u0144, Poland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Physics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Toru\u0144, Poland","institution_ids":["https://openalex.org/I3019271933"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073121229","display_name":"Piotr Leszek Kolenderski","orcid":"https://orcid.org/0000-0003-2478-2417","observed_orcids":["https://orcid.org/0000-0003-2478-2417"]},"institutions":[{"id":"https://openalex.org/I3019271933","display_name":"Nicolaus Copernicus University","ror":"https://ror.org/0102mm775","country_code":"PL","type":"education","lineage":["https://openalex.org/I3019271933"]}],"countries":["PL"],"is_corresponding":false,"raw_author_name":"Piotr Kolenderski","raw_affiliation_strings":["Institute of Physics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Toru\u0144, Poland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Physics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Toru\u0144, Poland","institution_ids":["https://openalex.org/I3019271933"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5040823231","display_name":"Robert Frankowski","orcid":"https://orcid.org/0000-0002-5652-7851","observed_orcids":["https://orcid.org/0000-0002-5652-7851"]},"institutions":[{"id":"https://openalex.org/I3019271933","display_name":"Nicolaus Copernicus University","ror":"https://ror.org/0102mm775","country_code":"PL","type":"education","lineage":["https://openalex.org/I3019271933"]}],"countries":["PL"],"is_corresponding":false,"raw_author_name":"Robert Frankowski","raw_affiliation_strings":["Institute of Physics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Toru\u0144, Poland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Physics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Toru\u0144, Poland","institution_ids":["https://openalex.org/I3019271933"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I3019271933"],"apc_list":{"value":3750,"currency":"USD","value_usd":3750},"apc_paid":null,"fwci":4.3159,"has_fulltext":false,"cited_by_count":67,"citation_normalized_percentile":{"value":0.94006175,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"99","issue":"12","first_page":"123601","last_page":"123601"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10020","display_name":"Quantum Information and Cryptography","score":0.8925999999046326,"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/T10020","display_name":"Quantum Information and Cryptography","score":0.8925999999046326,"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/T11414","display_name":"Quantum optics and atomic interactions","score":0.08370000123977661,"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/T10622","display_name":"Quantum Mechanics and Applications","score":0.00559999980032444,"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/spectral-density-matrix","display_name":"spectral density matrix","score":0.9269999861717224},{"id":"https://openalex.org/keywords/single-photons","display_name":"single photons","score":0.6439999938011169},{"id":"https://openalex.org/keywords/hong-ou-mandel-interference","display_name":"Hong-Ou-Mandel interference","score":0.9869999885559082},{"id":"https://openalex.org/keywords/coincidence-counts","display_name":"coincidence counts","score":0.49799999594688416},{"id":"https://openalex.org/keywords/interferogram","display_name":"interferogram","score":0.8330000042915344},{"id":"https://openalex.org/keywords/ultrashort-laser-pulses","display_name":"ultrashort laser pulses","score":0.8999999761581421},{"id":"https://openalex.org/keywords/quantum-state-tomography","display_name":"quantum state tomography","score":0.5509999990463257}],"concepts":[{"id":"https://openalex.org/C2779832538","wikidata":"https://www.wikidata.org/wiki/Q2308809","display_name":"Coincidence","level":3,"score":0.748551070690155},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.6890808939933777},{"id":"https://openalex.org/C159317903","wikidata":"https://www.wikidata.org/wiki/Q3198","display_name":"Photon","level":2,"score":0.6838226914405823},{"id":"https://openalex.org/C56911000","wikidata":"https://www.wikidata.org/wiki/Q831774","display_name":"Density matrix","level":3,"score":0.6693589091300964},{"id":"https://openalex.org/C520434653","wikidata":"https://www.wikidata.org/wiki/Q38867","display_name":"Laser","level":2,"score":0.6542665958404541},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.6173299551010132},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.5746173858642578},{"id":"https://openalex.org/C2780167933","wikidata":"https://www.wikidata.org/wiki/Q1550652","display_name":"Pulse (music)","level":3,"score":0.5679911375045776},{"id":"https://openalex.org/C180205008","wikidata":"https://www.wikidata.org/wiki/Q159190","display_name":"Amplitude","level":2,"score":0.5542066097259521},{"id":"https://openalex.org/C106487976","wikidata":"https://www.wikidata.org/wiki/Q685816","display_name":"Matrix (chemical analysis)","level":2,"score":0.49369367957115173},{"id":"https://openalex.org/C178596936","wikidata":"https://www.wikidata.org/wiki/Q844471","display_name":"Ultrashort pulse","level":3,"score":0.43394938111305237},{"id":"https://openalex.org/C30475298","wikidata":"https://www.wikidata.org/wiki/Q909554","display_name":"Computational physics","level":1,"score":0.3832884430885315},{"id":"https://openalex.org/C184779094","wikidata":"https://www.wikidata.org/wiki/Q26383","display_name":"Atomic physics","level":1,"score":0.36272913217544556},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.19500279426574707},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.17082250118255615},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.1547141969203949},{"id":"https://openalex.org/C84114770","wikidata":"https://www.wikidata.org/wiki/Q46344","display_name":"Quantum","level":2,"score":0.12618884444236755},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C204787440","wikidata":"https://www.wikidata.org/wiki/Q188504","display_name":"Alternative medicine","level":2,"score":0.0},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.1103/physrevlett.99.123601","doi":"https://doi.org/10.1103/physrevlett.99.123601","is_oa":false,"landing_page_url":"https://doi.org/10.1103/physrevlett.99.123601","pdf_url":null,"source":{"id":"https://openalex.org/S24807848","display_name":"Physical Review Letters","issn_l":"0031-9007","issn":["0031-9007","1079-7114","1092-0145"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","jufo-3","ki-jl-2","medline","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320261","host_organization_name":"American Physical Society","host_organization_lineage":["https://openalex.org/P4310320261"],"host_organization_lineage_names":["American Physical Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Physical Review Letters","raw_type":"journal-article"},{"id":"pmid:17930501","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/17930501","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Physical review letters","raw_type":"Journal Article"},{"id":"pmh:oai:arXiv.org:quant-ph/0702200","doi":null,"is_oa":true,"landing_page_url":"http://arxiv.org/abs/quant-ph/0702200","pdf_url":"https://arxiv.org/pdf/quant-ph/0702200","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:cds.cern.ch:1018892","doi":null,"is_oa":false,"landing_page_url":"http://cds.cern.ch/record/1018892","pdf_url":null,"source":{"id":"https://openalex.org/S4306402195","display_name":"CERN Document Server (European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":null},{"id":"doi:10.48550/arxiv.quant-ph/0702200","doi":"https://doi.org/10.48550/arxiv.quant-ph/0702200","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.quant-ph/0702200","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":"article-journal"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:quant-ph/0702200","doi":null,"is_oa":true,"landing_page_url":"http://arxiv.org/abs/quant-ph/0702200","pdf_url":"https://arxiv.org/pdf/quant-ph/0702200","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":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W624093280","https://openalex.org/W1514675880","https://openalex.org/W1654550810","https://openalex.org/W1982390307","https://openalex.org/W1996323967","https://openalex.org/W2006602075","https://openalex.org/W2011903883","https://openalex.org/W2024622260","https://openalex.org/W2053812734","https://openalex.org/W2059240036","https://openalex.org/W2062584998","https://openalex.org/W2068309725","https://openalex.org/W2072859015","https://openalex.org/W2073659633","https://openalex.org/W2086847406","https://openalex.org/W2161971453","https://openalex.org/W2163525631"],"related_works":["https://openalex.org/W4390615027","https://openalex.org/W2991579475","https://openalex.org/W4229440459","https://openalex.org/W2972779595","https://openalex.org/W2082135338","https://openalex.org/W6922392325","https://openalex.org/W2172199598","https://openalex.org/W1989312188","https://openalex.org/W4389538509","https://openalex.org/W2734882273"],"abstract_inverted_index":{"We":[0],"propose":[1],"and":[2,31,36],"demonstrate":[3],"a":[4,13,26,32,43,53,65,80],"method":[5,18,60],"for":[6,64],"measuring":[7],"the":[8,87,95],"spectral":[9,45],"density":[10,48],"matrix":[11,49],"of":[12,34,56],"single":[14],"photon":[15,27],"pulse.":[16],"The":[17,47,59,74],"is":[19,50],"based":[20],"on":[21],"registering":[22],"Hong-Ou-Mandel":[23],"interference":[24],"between":[25],"to":[28],"be":[29],"measured":[30],"pair":[33],"attenuated":[35],"suitably":[37],"delayed":[38],"laser":[39,72],"pulses":[40],"described":[41],"by":[42,70],"known":[44],"amplitude.":[46],"retrieved":[51],"from":[52],"two-dimensional":[54],"interferogram":[55],"coincidence":[57],"counts.":[58],"has":[61],"been":[62],"implemented":[63],"type-I":[66],"down-conversion":[67],"source,":[68],"pumped":[69],"ultrashort":[71],"pulses.":[73],"experimental":[75],"results":[76],"agree":[77],"well":[78,90],"with":[79],"theoretical":[81],"model":[82],"which":[83],"takes":[84],"into":[85],"account":[86],"temporal":[88],"as":[89,91],"spatial":[92],"effects":[93],"in":[94],"source.":[96]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":6},{"year":2021,"cited_by_count":6},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":6},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":4},{"year":2015,"cited_by_count":4},{"year":2014,"cited_by_count":3},{"year":2013,"cited_by_count":5},{"year":2012,"cited_by_count":4}],"updated_date":"2026-11-03T10:50:19.383937","created_date":"2016-06-24T00:00:00"}