{"id":"https://openalex.org/W4412403190","doi":"https://doi.org/10.1103/r7yp-1vz4","title":"Experimental realization of universal quantum gates and a six-qubit entangled state using a photonic quantum walk","display_name":"Experimental realization of universal quantum gates and a six-qubit entangled state using a photonic quantum walk","publication_year":2025,"publication_date":"2025-07-14","ids":{"openalex":"https://openalex.org/W4412403190","doi":"https://doi.org/10.1103/r7yp-1vz4"},"language":"en","primary_location":{"id":"doi:10.1103/r7yp-1vz4","doi":"https://doi.org/10.1103/r7yp-1vz4","is_oa":false,"landing_page_url":"https://doi.org/10.1103/r7yp-1vz4","pdf_url":null,"source":{"id":"https://openalex.org/S2764453006","display_name":"Physical Review Applied","issn_l":"2331-7019","issn":["2331-7019","2331-7043"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-a","jufo-2","norway-2","poland-140","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 Applied","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["arxiv","crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2403.06665","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"Kanad Sengupta","orcid":"https://orcid.org/0000-0001-7207-9094","observed_orcids":["https://orcid.org/0000-0001-7207-9094"]},"institutions":[{"id":"https://openalex.org/I59270414","display_name":"Indian Institute of Science Bangalore","ror":"https://ror.org/04dese585","country_code":"IN","type":"education","lineage":["https://openalex.org/I59270414"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Kanad Sengupta","raw_affiliation_strings":["Indian Institute Science","Department of Instrumentation and Applied Physics, Indian Institute Science, Bengaluru 560012, India"],"raw_orcid":"https://orcid.org/0000-0001-7207-9094","affiliations":[{"raw_affiliation_string":"Indian Institute Science","institution_ids":["https://openalex.org/I59270414"]},{"raw_affiliation_string":"Department of Instrumentation and Applied Physics, Indian Institute Science, Bengaluru 560012, India","institution_ids":["https://openalex.org/I59270414"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102628804","display_name":"S. P. Dinesh","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I59270414","display_name":"Indian Institute of Science Bangalore","ror":"https://ror.org/04dese585","country_code":"IN","type":"education","lineage":["https://openalex.org/I59270414"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"S.P. Dinesh","raw_affiliation_strings":["Indian Institute Science","Department of Instrumentation and Applied Physics, Indian Institute Science, Bengaluru 560012, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Indian Institute Science","institution_ids":["https://openalex.org/I59270414"]},{"raw_affiliation_string":"Department of Instrumentation and Applied Physics, Indian Institute Science, Bengaluru 560012, India","institution_ids":["https://openalex.org/I59270414"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085433187","display_name":"K. Muhammed Shafi","orcid":"https://orcid.org/0000-0003-2586-0253","observed_orcids":["https://orcid.org/0000-0003-2586-0253"]},"institutions":[{"id":"https://openalex.org/I59270414","display_name":"Indian Institute of Science Bangalore","ror":"https://ror.org/04dese585","country_code":"IN","type":"education","lineage":["https://openalex.org/I59270414"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"K. Muhammed Shafi","raw_affiliation_strings":["Indian Institute Science","Department of Instrumentation and Applied Physics, Indian Institute Science, Bengaluru 560012, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Indian Institute Science","institution_ids":["https://openalex.org/I59270414"]},{"raw_affiliation_string":"Department of Instrumentation and Applied Physics, Indian Institute Science, Bengaluru 560012, India","institution_ids":["https://openalex.org/I59270414"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109690955","display_name":"Soumya Asokan","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I59270414","display_name":"Indian Institute of Science Bangalore","ror":"https://ror.org/04dese585","country_code":"IN","type":"education","lineage":["https://openalex.org/I59270414"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Soumya Asokan","raw_affiliation_strings":["Indian Institute Science","Department of Instrumentation and Applied Physics, Indian Institute Science, Bengaluru 560012, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Indian Institute Science","institution_ids":["https://openalex.org/I59270414"]},{"raw_affiliation_string":"Department of Instrumentation and Applied Physics, Indian Institute Science, Bengaluru 560012, India","institution_ids":["https://openalex.org/I59270414"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5024919473","display_name":"C. M. Chandrashekar","orcid":"https://orcid.org/0000-0003-4820-2317","observed_orcids":["https://orcid.org/0000-0003-4820-2317"]},"institutions":[{"id":"https://openalex.org/I200207707","display_name":"Homi Bhabha National Institute","ror":"https://ror.org/02bv3zr67","country_code":"IN","type":"education","lineage":["https://openalex.org/I200207707"]},{"id":"https://openalex.org/I4210157032","display_name":"Institute of Mathematical Sciences","ror":"https://ror.org/05e9bn444","country_code":"ES","type":"facility","lineage":["https://openalex.org/I4210157032"]},{"id":"https://openalex.org/I59270414","display_name":"Indian Institute of Science Bangalore","ror":"https://ror.org/04dese585","country_code":"IN","type":"education","lineage":["https://openalex.org/I59270414"]},{"id":"https://openalex.org/I59611059","display_name":"Institute of Mathematical Sciences","ror":"https://ror.org/05078rg59","country_code":"IN","type":"facility","lineage":["https://openalex.org/I59611059"]}],"countries":["ES","IN"],"is_corresponding":false,"raw_author_name":"C.M. Chandrashekar","raw_affiliation_strings":["Homi Bhabha National Institute, Training School Complex","Indian Institute Science","The Institute of Mathematical Sciences","Department of Instrumentation and Applied Physics, Indian Institute Science, Bengaluru 560012, India","Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India","The Institute of Mathematical Sciences, C. I. T. Campus, Taramani, Chennai 600113, India"],"raw_orcid":"https://orcid.org/0000-0003-4820-2317","affiliations":[{"raw_affiliation_string":"Homi Bhabha National Institute, Training School Complex","institution_ids":["https://openalex.org/I200207707"]},{"raw_affiliation_string":"Indian Institute Science","institution_ids":["https://openalex.org/I59270414"]},{"raw_affiliation_string":"The Institute of Mathematical Sciences","institution_ids":["https://openalex.org/I4210157032","https://openalex.org/I59611059"]},{"raw_affiliation_string":"Department of Instrumentation and Applied Physics, Indian Institute Science, Bengaluru 560012, India","institution_ids":["https://openalex.org/I59270414"]},{"raw_affiliation_string":"Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India","institution_ids":["https://openalex.org/I200207707"]},{"raw_affiliation_string":"The Institute of Mathematical Sciences, C. I. T. Campus, Taramani, Chennai 600113, India","institution_ids":["https://openalex.org/I59611059"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.9894,"has_fulltext":true,"cited_by_count":9,"citation_normalized_percentile":{"value":0.87583095,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":98},"biblio":{"volume":"24","issue":"2","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":0.6621000170707703,"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":0.6621000170707703,"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":0.3240000009536743,"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":0.002300000051036477,"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/photonic-quantum-walks","display_name":"photonic quantum walks","score":0.9700000286102295},{"id":"https://openalex.org/keywords/universal-quantum-gates","display_name":"universal quantum gates","score":0.777999997138977},{"id":"https://openalex.org/keywords/ghz-states","display_name":"GHZ states","score":0.9179999828338623},{"id":"https://openalex.org/keywords/polarization-encoding","display_name":"polarization encoding","score":0.6620000004768372},{"id":"https://openalex.org/keywords/path-encoding","display_name":"path encoding","score":0.9559999704360962},{"id":"https://openalex.org/keywords/deterministic-quantum-gates","display_name":"deterministic quantum gates","score":0.703000009059906},{"id":"https://openalex.org/keywords/quantum-circuit-mapping","display_name":"quantum circuit mapping","score":0.5659999847412109}],"concepts":[{"id":"https://openalex.org/C2781089630","wikidata":"https://www.wikidata.org/wiki/Q21856745","display_name":"Realization (probability)","level":2,"score":0.7852851152420044},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.6772804260253906},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.6140912175178528},{"id":"https://openalex.org/C203087015","wikidata":"https://www.wikidata.org/wiki/Q378201","display_name":"Qubit","level":3,"score":0.6115738749504089},{"id":"https://openalex.org/C19271316","wikidata":"https://www.wikidata.org/wiki/Q7092353","display_name":"One-way quantum computer","level":5,"score":0.5113360285758972},{"id":"https://openalex.org/C20593774","wikidata":"https://www.wikidata.org/wiki/Q7958522","display_name":"W state","level":4,"score":0.4987623691558838},{"id":"https://openalex.org/C84114770","wikidata":"https://www.wikidata.org/wiki/Q46344","display_name":"Quantum","level":2,"score":0.45930302143096924},{"id":"https://openalex.org/C186468114","wikidata":"https://www.wikidata.org/wiki/Q836478","display_name":"Quantum network","level":4,"score":0.4583247900009155},{"id":"https://openalex.org/C20788544","wikidata":"https://www.wikidata.org/wiki/Q467054","display_name":"Photonics","level":2,"score":0.4436267912387848},{"id":"https://openalex.org/C91717678","wikidata":"https://www.wikidata.org/wiki/Q1135332","display_name":"Quantum teleportation","level":5,"score":0.41593873500823975},{"id":"https://openalex.org/C48103436","wikidata":"https://www.wikidata.org/wiki/Q599031","display_name":"State (computer science)","level":2,"score":0.41076645255088806},{"id":"https://openalex.org/C51003876","wikidata":"https://www.wikidata.org/wiki/Q1536431","display_name":"Quantum error correction","level":4,"score":0.28884387016296387},{"id":"https://openalex.org/C169699857","wikidata":"https://www.wikidata.org/wiki/Q2122243","display_name":"Quantum information","level":3,"score":0.2637186050415039},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.19145047664642334},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1248430609703064},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.04841119050979614},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1103/r7yp-1vz4","doi":"https://doi.org/10.1103/r7yp-1vz4","is_oa":false,"landing_page_url":"https://doi.org/10.1103/r7yp-1vz4","pdf_url":null,"source":{"id":"https://openalex.org/S2764453006","display_name":"Physical Review Applied","issn_l":"2331-7019","issn":["2331-7019","2331-7043"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-a","jufo-2","norway-2","poland-140","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 Applied","raw_type":"journal-article"},{"id":"pmh:oai:arXiv.org:2403.06665","doi":null,"is_oa":true,"landing_page_url":"http://arxiv.org/abs/2403.06665","pdf_url":"https://arxiv.org/pdf/2403.06665","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.2403.06665","doi":"https://doi.org/10.48550/arxiv.2403.06665","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2403.06665","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:2403.06665","doi":null,"is_oa":true,"landing_page_url":"http://arxiv.org/abs/2403.06665","pdf_url":"https://arxiv.org/pdf/2403.06665","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":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4412403190.pdf","grobid_xml":"https://content.openalex.org/works/W4412403190.grobid-xml"},"referenced_works_count":60,"referenced_works":["https://openalex.org/W1514675880","https://openalex.org/W1872062004","https://openalex.org/W1966337541","https://openalex.org/W1968390152","https://openalex.org/W1970611135","https://openalex.org/W1971600310","https://openalex.org/W1983336715","https://openalex.org/W1992060082","https://openalex.org/W1994917526","https://openalex.org/W1999799374","https://openalex.org/W2000488680","https://openalex.org/W2009948449","https://openalex.org/W2012716029","https://openalex.org/W2020601916","https://openalex.org/W2020750044","https://openalex.org/W2025956887","https://openalex.org/W2035993353","https://openalex.org/W2036888681","https://openalex.org/W2042436708","https://openalex.org/W2042723520","https://openalex.org/W2044645833","https://openalex.org/W2045702468","https://openalex.org/W2052612308","https://openalex.org/W2052783597","https://openalex.org/W2058468006","https://openalex.org/W2071195873","https://openalex.org/W2074808661","https://openalex.org/W2077767282","https://openalex.org/W2083870263","https://openalex.org/W2084622437","https://openalex.org/W2091622055","https://openalex.org/W2145841221","https://openalex.org/W2161027938","https://openalex.org/W2162328638","https://openalex.org/W2163525631","https://openalex.org/W2167622388","https://openalex.org/W2211709046","https://openalex.org/W2298943946","https://openalex.org/W2574433003","https://openalex.org/W2611519773","https://openalex.org/W2752346050","https://openalex.org/W2783832697","https://openalex.org/W2911554043","https://openalex.org/W2949392700","https://openalex.org/W2952638737","https://openalex.org/W2954967660","https://openalex.org/W2981243347","https://openalex.org/W2982169647","https://openalex.org/W3004833681","https://openalex.org/W3122257190","https://openalex.org/W3164073512","https://openalex.org/W3173968502","https://openalex.org/W3176603110","https://openalex.org/W3194478582","https://openalex.org/W4281891658","https://openalex.org/W4313408630","https://openalex.org/W4362673628","https://openalex.org/W4377234171","https://openalex.org/W4402412718","https://openalex.org/W4403663966"],"related_works":["https://openalex.org/W4392736181","https://openalex.org/W2599471072","https://openalex.org/W2791858110","https://openalex.org/W199175816","https://openalex.org/W3157951739","https://openalex.org/W4379792170","https://openalex.org/W2921310825","https://openalex.org/W166095912","https://openalex.org/W2247267097","https://openalex.org/W2787966061"],"abstract_inverted_index":{"For":[0,91],"quantum":[1,7,48,67,79,83,88,154,158,174,177],"computation":[2],"using":[3,95,104,114,173,184],"photons,":[4],"performing":[5],"deterministic":[6,76],"gate":[8,141],"operations":[9,31,142,156],"is":[10,34,102],"a":[11,63,92,96,119,124,169,181],"challenge":[12],"due":[13],"to":[14,40,133,157,163,194],"the":[15,19,37,42,60,99,108,135,150,196],"probabilistic":[16,43],"nature":[17],"of":[18,27,36,62,66,78,152,192,198],"photon-photon":[20],"interaction.":[21],"Encoding":[22],"qubits":[23,111],"in":[24,50,187],"multiple":[25],"degrees-of-freedom":[26,191],"photons":[28,186],"and":[29,54,107,160,179],"controlling":[30],"between":[32],"them":[33],"one":[35],"promising":[38],"ways":[39],"navigate":[41],"behavior.":[44],"Using":[45],"single-photon":[46],"discrete-time":[47],"walk":[49,84,155],"combination":[51,188],"with":[52,69,189],"polarization":[53,105],"path":[55,115],"degrees-of-freedom,":[56],"we":[57],"experimentally":[58],"demonstrate":[59],"realization":[61,77],"universal":[64],"set":[65],"gates":[68,80],"high":[70],"fidelity":[71],"at":[72],"room":[73],"temperature.":[74],"The":[75],"through":[81],"photonic":[82,153],"are":[85,112,131,143],"characterized":[86],"via":[87],"state":[89],"tomography.":[90],"three-qubit":[93,137],"system":[94],"single":[97],"photon,":[98],"first":[100],"qubit":[101],"encoded":[103,113],"information,":[106,116],"other":[109],"two":[110,136],"closely":[117],"resembling":[118],"Galton-board":[120],"setup.":[121],"To":[122],"generate":[123],"six-qubit":[125],"Greenberger-Horne-Zeilinger":[126],"state,":[127],"entangled":[128],"photon":[129,193],"pairs":[130],"used":[132],"entangle":[134],"modules":[138],"on":[139],"which":[140],"performed.":[144],"We":[145],"also":[146],"provide":[147],"insights":[148],"into":[149],"mapping":[151],"circuits":[159],"propose":[161],"methods":[162],"resourcefully":[164],"scale.":[165],"This":[166],"demonstration":[167],"marks":[168],"significant":[170],"progress":[171],"towards":[172],"walks":[175],"for":[176,183],"computing":[178],"provides":[180],"framework":[182],"fewer":[185],"different":[190],"scale":[195],"number":[197],"qubits.":[199]},"counts_by_year":[{"year":2026,"cited_by_count":5},{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":1}],"updated_date":"2026-11-10T11:39:43.021295","created_date":"2025-07-15T00:00:00"}