{"id":"https://openalex.org/W2302821494","doi":"https://doi.org/10.26421/qic16.11-12-5","title":"Optimal universal quantum cloning: asymmetries and fidelity measures","display_name":"Optimal universal quantum cloning: asymmetries and fidelity measures","publication_year":2016,"publication_date":"2016-09-01","ids":{"openalex":"https://openalex.org/W2302821494","doi":"https://doi.org/10.26421/qic16.11-12-5","mag":"2302821494"},"language":"en","primary_location":{"id":"doi:10.26421/qic16.11-12-5","is_oa":false,"landing_page_url":"https://doi.org/10.26421/qic16.11-12-5","pdf_url":null,"source":{"id":"https://openalex.org/S41034432","display_name":"Quantum Information and Computation","issn_l":"1533-7146","issn":["1533-7146"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310322612","host_organization_name":"Rinton Press","host_organization_lineage":["https://openalex.org/P4310322612"],"host_organization_lineage_names":["Rinton Press"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Quantum Information and Computation","raw_type":"journal-article"},"type":"preprint","indexed_in":["arxiv","crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/1407.4951","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5014337474","display_name":"Alastair Kay","orcid":"https://orcid.org/0000-0002-0311-6266"},"institutions":[{"id":"https://openalex.org/I184558857","display_name":"Royal Holloway University of London","ror":"https://ror.org/04g2vpn86","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I184558857"]}],"countries":["GB"],"is_corresponding":true,"raw_author_name":"Alastair Kay","raw_affiliation_strings":["Department of Mathematics, Royal Holloway University of London, Egham, Surrey, United Kingdom#TAB#"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics, Royal Holloway University of London, Egham, Surrey, United Kingdom#TAB#","institution_ids":["https://openalex.org/I184558857"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5014337474"],"corresponding_institution_ids":["https://openalex.org/I184558857"],"apc_list":null,"apc_paid":null,"fwci":0.56375376,"has_fulltext":true,"cited_by_count":2,"citation_normalized_percentile":{"value":0.86021829,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"16","issue":"11&12","first_page":"991","last_page":"1028"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10682","display_name":"Quantum Computing Algorithms and Architecture","score":0.9998000264167786,"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":0.9998000264167786,"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":0.9997000098228455,"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":0.9950000047683716,"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-cloning","display_name":"Quantum cloning","score":0.8525080680847168},{"id":"https://openalex.org/keywords/cloning","display_name":"Cloning (programming)","score":0.7470865249633789},{"id":"https://openalex.org/keywords/fidelity","display_name":"Fidelity","score":0.636795699596405},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.500382661819458},{"id":"https://openalex.org/keywords/formalism","display_name":"Formalism (music)","score":0.4577043056488037},{"id":"https://openalex.org/keywords/quantum","display_name":"Quantum","score":0.420332133769989},{"id":"https://openalex.org/keywords/quadratic-equation","display_name":"Quadratic equation","score":0.41896364092826843},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4145238697528839},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.3811055123806},{"id":"https://openalex.org/keywords/quantum-computer","display_name":"Quantum computer","score":0.32348424196243286},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.32185661792755127},{"id":"https://openalex.org/keywords/quantum-error-correction","display_name":"Quantum error correction","score":0.17667439579963684},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.17498818039894104},{"id":"https://openalex.org/keywords/quantum-mechanics","display_name":"Quantum mechanics","score":0.12625986337661743},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.07862991094589233}],"concepts":[{"id":"https://openalex.org/C2776887110","wikidata":"https://www.wikidata.org/wiki/Q7269018","display_name":"Quantum cloning","level":5,"score":0.8525080680847168},{"id":"https://openalex.org/C121050878","wikidata":"https://www.wikidata.org/wiki/Q5135020","display_name":"Cloning (programming)","level":2,"score":0.7470865249633789},{"id":"https://openalex.org/C2776459999","wikidata":"https://www.wikidata.org/wiki/Q2119376","display_name":"Fidelity","level":2,"score":0.636795699596405},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.500382661819458},{"id":"https://openalex.org/C73301696","wikidata":"https://www.wikidata.org/wiki/Q5469984","display_name":"Formalism (music)","level":3,"score":0.4577043056488037},{"id":"https://openalex.org/C84114770","wikidata":"https://www.wikidata.org/wiki/Q46344","display_name":"Quantum","level":2,"score":0.420332133769989},{"id":"https://openalex.org/C129844170","wikidata":"https://www.wikidata.org/wiki/Q41299","display_name":"Quadratic equation","level":2,"score":0.41896364092826843},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4145238697528839},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.3811055123806},{"id":"https://openalex.org/C58053490","wikidata":"https://www.wikidata.org/wiki/Q176555","display_name":"Quantum computer","level":3,"score":0.32348424196243286},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.32185661792755127},{"id":"https://openalex.org/C51003876","wikidata":"https://www.wikidata.org/wiki/Q1536431","display_name":"Quantum error correction","level":4,"score":0.17667439579963684},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.17498818039894104},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.12625986337661743},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.07862991094589233},{"id":"https://openalex.org/C153349607","wikidata":"https://www.wikidata.org/wiki/Q36649","display_name":"Visual arts","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C558565934","wikidata":"https://www.wikidata.org/wiki/Q2743","display_name":"Musical","level":2,"score":0.0},{"id":"https://openalex.org/C142362112","wikidata":"https://www.wikidata.org/wiki/Q735","display_name":"Art","level":0,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.26421/qic16.11-12-5","is_oa":false,"landing_page_url":"https://doi.org/10.26421/qic16.11-12-5","pdf_url":null,"source":{"id":"https://openalex.org/S41034432","display_name":"Quantum Information and Computation","issn_l":"1533-7146","issn":["1533-7146"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310322612","host_organization_name":"Rinton Press","host_organization_lineage":["https://openalex.org/P4310322612"],"host_organization_lineage_names":["Rinton Press"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Quantum Information and Computation","raw_type":"journal-article"},{"id":"pmh:oai:arXiv.org:1407.4951","is_oa":true,"landing_page_url":"http://arxiv.org/abs/1407.4951","pdf_url":"https://arxiv.org/pdf/1407.4951","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"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":"","raw_type":null},{"id":"mag:2302821494","is_oa":true,"landing_page_url":"https://arxiv.org/pdf/1407.4951.pdf","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"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":"arXiv (Cornell University)","raw_type":null},{"id":"doi:10.48550/arxiv.1407.4951","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.1407.4951","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"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":null,"raw_source_name":null,"raw_type":"article-journal"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:1407.4951","is_oa":true,"landing_page_url":"http://arxiv.org/abs/1407.4951","pdf_url":"https://arxiv.org/pdf/1407.4951","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"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":"","raw_type":null},"sustainable_development_goals":[{"display_name":"Partnerships for the goals","id":"https://metadata.un.org/sdg/17","score":0.41999998688697815}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2302821494.pdf"},"referenced_works_count":27,"referenced_works":["https://openalex.org/W132789698","https://openalex.org/W1559604118","https://openalex.org/W1624621931","https://openalex.org/W1800240078","https://openalex.org/W2004153499","https://openalex.org/W2031374990","https://openalex.org/W2031494345","https://openalex.org/W2031874861","https://openalex.org/W2051051926","https://openalex.org/W2054070842","https://openalex.org/W2058475655","https://openalex.org/W2058701696","https://openalex.org/W2060819126","https://openalex.org/W2061345999","https://openalex.org/W2062638828","https://openalex.org/W2072785549","https://openalex.org/W2091273916","https://openalex.org/W2097704103","https://openalex.org/W2138203529","https://openalex.org/W2146325398","https://openalex.org/W2148115906","https://openalex.org/W2170155503","https://openalex.org/W2296319761","https://openalex.org/W2914659449","https://openalex.org/W2987687226","https://openalex.org/W3037687804","https://openalex.org/W3038125210"],"related_works":["https://openalex.org/W2955279661","https://openalex.org/W2964159801","https://openalex.org/W2048341057","https://openalex.org/W2397077590","https://openalex.org/W2119349007","https://openalex.org/W2781318643","https://openalex.org/W2077658048","https://openalex.org/W2949264833","https://openalex.org/W1674701904","https://openalex.org/W2963958641","https://openalex.org/W1978556588","https://openalex.org/W2793059746","https://openalex.org/W1592156823","https://openalex.org/W1738139898","https://openalex.org/W1977901547","https://openalex.org/W3103274143","https://openalex.org/W2226250968","https://openalex.org/W2158734285","https://openalex.org/W2331985790","https://openalex.org/W3016651332"],"abstract_inverted_index":{"We":[0,51,131],"study":[1],"the":[2,36,40,49,78,110],"problem":[3,80],"of":[4,13,86,127,143],"universal":[5,106],"quantum":[6,18],"cloning":[7,79,115,129],"\u2013":[8],"taking":[9],"several":[10],"identical":[11],"copies":[12,41],"a":[14,84],"pure":[15],"but":[16],"unknown":[17],"state":[19],"and":[20,62,94,108,148],"producing":[21],"further":[22],"copies.":[23],"While":[24],"it":[25,30],"is":[26,31,81],"well":[27,39],"known":[28,102],"that":[29,136],"impossible":[32],"to":[33,92,152],"perfectly":[34],"reproduce":[35,100],"state,":[37],"how":[38,53,63],"can":[42,45,56,67],"be":[43,46,57,68],"cloned":[44],"quantified":[47],"using":[48],"fidelity.":[50],"examine":[52],"individual":[54],"fidelities":[55,123],"traded":[58],"against":[59],"each":[60],"other,":[61],"different":[64],"fidelity":[65],"measures":[66],"incorporated.":[69],"The":[70],"broadly":[71],"applicable":[72],"formalism":[73],"into":[74],"which":[75,89],"we":[76,99],"transform":[77],"described":[82],"as":[83],"series":[85],"quadratic":[87],"constraints":[88],"are":[90],"amenable":[91],"mathematical":[93],"computational":[95],"scrutiny.":[96],"As":[97],"such,":[98],"all":[101],"results":[103,112],"on":[104,113],"optimal":[105,128],"cloning,":[107],"push":[109],"recent":[111],"asymmetric":[114],"much":[116],"further,":[117],"giving":[118],"new":[119],"trade-off":[120],"relations":[121],"between":[122],"for":[124],"broad":[125],"classes":[126],"machines.":[130],"also":[132],"provide":[133],"substantial":[134],"evidence":[135],"motivates":[137],"why":[138],"other":[139],"parameter":[140],"ranges":[141],"(number":[142],"input":[144],"copies)":[145],"have":[146],"not,":[147,150],"will":[149],"yield":[151],"similar":[153],"analysis.":[154]},"counts_by_year":[{"year":2018,"cited_by_count":1},{"year":2016,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
