{"id":"https://openalex.org/W2948096709","doi":null,"title":"Quantum metrology of grid deformations and squeezed light : with applications in quantum imaging & quantum information","display_name":"Quantum metrology of grid deformations and squeezed light : with applications in quantum imaging & quantum information","publication_year":2018,"publication_date":"2018-11-01","ids":{"openalex":"https://openalex.org/W2948096709","mag":"2948096709"},"language":"en","primary_location":{"id":"pmh:oai:etheses.whiterose.ac.uk:23594","doi":null,"is_oa":true,"landing_page_url":"http://etheses.whiterose.ac.uk/23594/1/Thesis.pdf","pdf_url":"http://etheses.whiterose.ac.uk/23594/1/Thesis.pdf","source":{"id":"https://openalex.org/S4306401585","display_name":"White Rose eTheses Online (University of Leeds, The University of Sheffield, University of York)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I2800616092","host_organization_name":"White Rose University Consortium","host_organization_lineage":["https://openalex.org/I2800616092"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Thesis"},"volume":null,"type":"dissertation","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://etheses.whiterose.ac.uk/23594/1/Thesis.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5089478084","display_name":"Jasminder S. Sidhu","orcid":"https://orcid.org/0000-0002-6167-8224","observed_orcids":["https://orcid.org/0000-0002-6167-8224"]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Jasminder S. Sidhu","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0000-0002-6167-8224","affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5089478084"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":2,"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/T10020","display_name":"Quantum Information and Cryptography","score":0.9980000257492065,"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"}},"topics":[{"id":"https://openalex.org/T10020","display_name":"Quantum Information and Cryptography","score":0.9980000257492065,"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":0.0010000000474974513,"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/T10682","display_name":"Quantum Computing Algorithms and Architecture","score":0.00019999999494757503,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/quantum-metrology","display_name":"quantum metrology","score":0.9589999914169312},{"id":"https://openalex.org/keywords/quantum-fisher-information","display_name":"quantum Fisher information","score":0.8389999866485596},{"id":"https://openalex.org/keywords/quantum-fisher-information-matrix","display_name":"quantum Fisher information matrix","score":0.8489999771118164},{"id":"https://openalex.org/keywords/grid-deformation","display_name":"grid deformation","score":0.4790000021457672},{"id":"https://openalex.org/keywords/source-localization","display_name":"source localization","score":0.824999988079071},{"id":"https://openalex.org/keywords/squeezed-light","display_name":"squeezed light","score":0.7170000076293945},{"id":"https://openalex.org/keywords/symmetric-logarithmic-derivative","display_name":"symmetric logarithmic derivative","score":0.7260000109672546},{"id":"https://openalex.org/keywords/incompatible-observables","display_name":"incompatible observables","score":0.7609999775886536},{"id":"https://openalex.org/keywords/entangled-states","display_name":"entangled states","score":0.5839999914169312},{"id":"https://openalex.org/keywords/single-photon-sources","display_name":"single-photon sources","score":0.8450000286102295},{"id":"https://openalex.org/keywords/thermal-states","display_name":"thermal states","score":0.5419999957084656},{"id":"https://openalex.org/keywords/quantum-imaging","display_name":"quantum imaging","score":0.7039999961853027},{"id":"https://openalex.org/keywords/quantum-information","display_name":"quantum information","score":0.640999972820282}],"concepts":[{"id":"https://openalex.org/C95013731","wikidata":"https://www.wikidata.org/wiki/Q7269071","display_name":"Quantum metrology","level":5,"score":0.8258876800537109},{"id":"https://openalex.org/C121040770","wikidata":"https://www.wikidata.org/wiki/Q215675","display_name":"Quantum entanglement","level":3,"score":0.6790685653686523},{"id":"https://openalex.org/C84114770","wikidata":"https://www.wikidata.org/wiki/Q46344","display_name":"Quantum","level":2,"score":0.561398446559906},{"id":"https://openalex.org/C89143813","wikidata":"https://www.wikidata.org/wiki/Q17105423","display_name":"Quantum sensor","level":5,"score":0.5486359596252441},{"id":"https://openalex.org/C158693339","wikidata":"https://www.wikidata.org/wiki/Q190524","display_name":"Eigenvalues and eigenvectors","level":2,"score":0.5278159379959106},{"id":"https://openalex.org/C15706264","wikidata":"https://www.wikidata.org/wiki/Q230883","display_name":"Quantum state","level":3,"score":0.5240923762321472},{"id":"https://openalex.org/C195766429","wikidata":"https://www.wikidata.org/wiki/Q394","display_name":"Metrology","level":2,"score":0.5163346529006958},{"id":"https://openalex.org/C159317903","wikidata":"https://www.wikidata.org/wiki/Q3198","display_name":"Photon","level":2,"score":0.5134738087654114},{"id":"https://openalex.org/C187691185","wikidata":"https://www.wikidata.org/wiki/Q2020720","display_name":"Grid","level":2,"score":0.5123788118362427},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.5023975372314453},{"id":"https://openalex.org/C152026323","wikidata":"https://www.wikidata.org/wiki/Q1032070","display_name":"Coherent states","level":3,"score":0.4598013758659363},{"id":"https://openalex.org/C169699857","wikidata":"https://www.wikidata.org/wiki/Q2122243","display_name":"Quantum information","level":3,"score":0.4361320436000824},{"id":"https://openalex.org/C121864883","wikidata":"https://www.wikidata.org/wiki/Q677916","display_name":"Statistical physics","level":1,"score":0.4279821515083313},{"id":"https://openalex.org/C29406490","wikidata":"https://www.wikidata.org/wiki/Q1420659","display_name":"Fisher information","level":2,"score":0.42162787914276123},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.37490200996398926},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3367394804954529},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2334774136543274},{"id":"https://openalex.org/C186468114","wikidata":"https://www.wikidata.org/wiki/Q836478","display_name":"Quantum network","level":4,"score":0.2008247673511505},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.07469308376312256},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:etheses.whiterose.ac.uk:23594","doi":null,"is_oa":true,"landing_page_url":"http://etheses.whiterose.ac.uk/23594/1/Thesis.pdf","pdf_url":"http://etheses.whiterose.ac.uk/23594/1/Thesis.pdf","source":{"id":"https://openalex.org/S4306401585","display_name":"White Rose eTheses Online (University of Leeds, The University of Sheffield, University of York)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I2800616092","host_organization_name":"White Rose University Consortium","host_organization_lineage":["https://openalex.org/I2800616092"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Thesis"},{"id":"mag:2948096709","doi":null,"is_oa":false,"landing_page_url":"https://etheses.whiterose.ac.uk/23594/","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null}],"best_oa_location":{"id":"pmh:oai:etheses.whiterose.ac.uk:23594","doi":null,"is_oa":true,"landing_page_url":"http://etheses.whiterose.ac.uk/23594/1/Thesis.pdf","pdf_url":"http://etheses.whiterose.ac.uk/23594/1/Thesis.pdf","source":{"id":"https://openalex.org/S4306401585","display_name":"White Rose eTheses Online (University of Leeds, The University of Sheffield, University of York)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I2800616092","host_organization_name":"White Rose University Consortium","host_organization_lineage":["https://openalex.org/I2800616092"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Thesis"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2948096709.pdf","grobid_xml":"https://content.openalex.org/works/W2948096709.grobid-xml"},"referenced_works_count":182,"referenced_works":["https://openalex.org/W100200759","https://openalex.org/W857798576","https://openalex.org/W930497576","https://openalex.org/W1438755473","https://openalex.org/W1475656110","https://openalex.org/W1481907350","https://openalex.org/W1514675880","https://openalex.org/W1519910619","https://openalex.org/W1527247894","https://openalex.org/W1549748890","https://openalex.org/W1578099298","https://openalex.org/W1600060954","https://openalex.org/W1629628124","https://openalex.org/W1650079475","https://openalex.org/W1869599893","https://openalex.org/W1964348979","https://openalex.org/W1967631009","https://openalex.org/W1969657318","https://openalex.org/W1970948459","https://openalex.org/W1971851949","https://openalex.org/W1972653359","https://openalex.org/W1973787174","https://openalex.org/W1975605050","https://openalex.org/W1976280626","https://openalex.org/W1976841091","https://openalex.org/W1977080092","https://openalex.org/W1978938773","https://openalex.org/W1979182831","https://openalex.org/W1980473219","https://openalex.org/W1981463101","https://openalex.org/W1981983416","https://openalex.org/W1982390307","https://openalex.org/W1986205218","https://openalex.org/W1986962549","https://openalex.org/W1987408033","https://openalex.org/W1990574566","https://openalex.org/W1992055308","https://openalex.org/W1993122650","https://openalex.org/W1993488859","https://openalex.org/W1994558702","https://openalex.org/W1994712115","https://openalex.org/W1996542865","https://openalex.org/W1998235959","https://openalex.org/W1999664967","https://openalex.org/W2000383488","https://openalex.org/W2000572113","https://openalex.org/W2004386359","https://openalex.org/W2005164286","https://openalex.org/W2007192819","https://openalex.org/W2007948277","https://openalex.org/W2008439590","https://openalex.org/W2008738328","https://openalex.org/W2013089988","https://openalex.org/W2015632215","https://openalex.org/W2015875255","https://openalex.org/W2015876000","https://openalex.org/W2016932851","https://openalex.org/W2018015605","https://openalex.org/W2022172100","https://openalex.org/W2022928942","https://openalex.org/W2026522229","https://openalex.org/W2028514697","https://openalex.org/W2029051094","https://openalex.org/W2029215592","https://openalex.org/W2030239805","https://openalex.org/W2032966202","https://openalex.org/W2033225070","https://openalex.org/W2033445880","https://openalex.org/W2033666272","https://openalex.org/W2033948497","https://openalex.org/W2034616707","https://openalex.org/W2040719832","https://openalex.org/W2042601507","https://openalex.org/W2043762513","https://openalex.org/W2044880278","https://openalex.org/W2046849745","https://openalex.org/W2047131277","https://openalex.org/W2051618454","https://openalex.org/W2051738725","https://openalex.org/W2052216032","https://openalex.org/W2052240261","https://openalex.org/W2055350506","https://openalex.org/W2055598264","https://openalex.org/W2056655582","https://openalex.org/W2060201892","https://openalex.org/W2061187628","https://openalex.org/W2061294795","https://openalex.org/W2063015622","https://openalex.org/W2064173118","https://openalex.org/W2067763535","https://openalex.org/W2068309608","https://openalex.org/W2068633470","https://openalex.org/W2071461214","https://openalex.org/W2072049807","https://openalex.org/W2072653652","https://openalex.org/W2072766443","https://openalex.org/W2075828421","https://openalex.org/W2076021266","https://openalex.org/W2078635972","https://openalex.org/W2079027298","https://openalex.org/W2082528946","https://openalex.org/W2082945629","https://openalex.org/W2083393662","https://openalex.org/W2083423624","https://openalex.org/W2083576616","https://openalex.org/W2085587015","https://openalex.org/W2085984091","https://openalex.org/W2090475034","https://openalex.org/W2091827434","https://openalex.org/W2093856853","https://openalex.org/W2097100165","https://openalex.org/W2100935653","https://openalex.org/W2101458419","https://openalex.org/W2108043809","https://openalex.org/W2108309395","https://openalex.org/W2108491246","https://openalex.org/W2112930989","https://openalex.org/W2115571773","https://openalex.org/W2115851312","https://openalex.org/W2116679455","https://openalex.org/W2122138985","https://openalex.org/W2124545902","https://openalex.org/W2133551227","https://openalex.org/W2137057431","https://openalex.org/W2137193534","https://openalex.org/W2139734935","https://openalex.org/W2141612697","https://openalex.org/W2141837858","https://openalex.org/W2142739935","https://openalex.org/W2144480799","https://openalex.org/W2146679548","https://openalex.org/W2152231616","https://openalex.org/W2153071080","https://openalex.org/W2155019887","https://openalex.org/W2163525631","https://openalex.org/W2164347519","https://openalex.org/W2164374704","https://openalex.org/W2167656187","https://openalex.org/W2168953727","https://openalex.org/W2168990839","https://openalex.org/W2170005629","https://openalex.org/W2170794175","https://openalex.org/W2172035669","https://openalex.org/W2176426498","https://openalex.org/W2228259595","https://openalex.org/W2247920117","https://openalex.org/W2258238025","https://openalex.org/W2270735164","https://openalex.org/W2272552459","https://openalex.org/W2302005128","https://openalex.org/W2303896580","https://openalex.org/W2311586019","https://openalex.org/W2326900912","https://openalex.org/W2331911229","https://openalex.org/W2346969480","https://openalex.org/W2484128055","https://openalex.org/W2566235155","https://openalex.org/W2582012066","https://openalex.org/W2591067744","https://openalex.org/W2592799394","https://openalex.org/W2595368095","https://openalex.org/W2601162998","https://openalex.org/W2615512142","https://openalex.org/W2738919369","https://openalex.org/W2757913998","https://openalex.org/W2761313505","https://openalex.org/W2768291729","https://openalex.org/W2773410499","https://openalex.org/W2778822417","https://openalex.org/W2894750565","https://openalex.org/W2963783471","https://openalex.org/W3037089521","https://openalex.org/W3037447387","https://openalex.org/W3101580771","https://openalex.org/W3110471435","https://openalex.org/W3143400115","https://openalex.org/W4211005167","https://openalex.org/W4233369467","https://openalex.org/W4234295943","https://openalex.org/W4234547436","https://openalex.org/W4249166508","https://openalex.org/W4252323729"],"related_works":["https://openalex.org/W6986791052","https://openalex.org/W2529079799","https://openalex.org/W2787800536","https://openalex.org/W7221004863","https://openalex.org/W7014798584","https://openalex.org/W7203956534","https://openalex.org/W2301836502","https://openalex.org/W1960235943","https://openalex.org/W2960311536","https://openalex.org/W4315646530"],"abstract_inverted_index":{"In":[0,131],"this":[1,81,208,462],"thesis":[2],"we":[3,34,94,191,226,306,309,326,348,401,433,466],"make":[4],"progress":[5],"towards":[6],"applications":[7],"of":[8,58,65,77,85,153,172,205,221,230,233,251,296,303,331,337,343,353,363,379,397,422],"quantum":[9,24,70,123,186,264,368,373,394],"estimation":[10,63,316,352,395,453],"theory":[11],"to":[12,119,146,197,202,214,313,318,445],"new":[13],"physical":[14],"systems.":[15],"We":[16,52,156,257],"first":[17],"consider":[18,349],"two":[19],"commonly":[20],"visited":[21],"problems":[22],"in":[23,254,358,372,426],"metrology:":[25],"source":[26,29,194],"optimisation":[27],"and":[28,91,100,149,242,276,285,300,375,411,463],"localisation.":[30],"For":[31],"the":[32,38,56,59,62,69,97,104,136,143,147,154,193,219,222,228,255,263,288,294,297,301,304,320,328,335,350,404,427,451,464,475],"first,":[33],"focus":[35,434],"on":[36,211,293,435,450],"estimating":[37],"distances,":[39],"d,":[40],"between":[41],"neighbouring":[42],"light":[43,365],"sources":[44,60,332],"along":[45],"an":[46],"array,":[47],"which":[48,141],"undergoes":[49],"stretching":[50],"deformations.":[51],"evaluate":[53],"how":[54,308],"changing":[55],"nature":[57],"impacts":[61],"precision":[64,166,454,478],"d":[66],"by":[67],"using":[68],"Fisher":[71,265],"information":[72,266],"(QFI)":[73],"as":[74,179,366],"a":[75,122,180,203,248,259,340,354,367,376,380,391,431,447,468],"figure":[76],"merit.":[78],"By":[79],"comparing":[80],"quantity":[82],"for":[83,185,262,272,339,386,409,455],"arrays":[84],"single":[86,105,457],"photon":[87,106],"emitters,":[88,305],"coherent,":[89],"thermal,":[90],"entangled":[92,161],"sources,":[93],"find":[95,327,402],"that":[96,140,158,217,236,244,333,403,472],"classical":[98,114],"coherent":[99],"thermal":[101],"states":[102,115,162],"outperform":[103],"emitters.":[107],"This":[108,168,389,417],"would":[109],"be":[110],"favourable":[111],"since":[112],"generating":[113],"is":[116,125,129,139,170,247,370,384,390,443],"less":[117],"resource-expensive":[118],"create.":[120],"However,":[121],"enhancement":[124],"observed":[126],"when":[127],"entanglement":[128,176],"employed.":[130],"agreement":[132],"with":[133],"separate":[134],"work,":[135],"optimal":[137,351,420,438],"state":[138,299],"entangles":[142],"eigenstates":[144],"corresponding":[145],"maximum":[148],"minimum":[150],"difference":[151],"eigenvalues":[152],"generator.":[155],"demonstrate":[157],"not":[159,415],"all":[160],"can":[163,310,473],"reproduce":[164],"similar":[165],"enhancements.":[167],"insight":[169],"reminiscent":[171],"previous":[173],"studies,":[174],"where":[175],"was":[177],"concluded":[178],"necessary":[181],"but":[182],"insufficient":[183],"resource":[184,369],"metrology.":[187],"\\n":[188,189,345,346],"\\nNext,":[190],"address":[192],"localisation":[195],"problem":[196,396],"detect":[198],"any":[199,238,273],"deformations":[200],"applied":[201,321],"grid":[204,240,274,322],"sources.":[206,344],"Improving":[207],"detection":[209,338],"depends":[210,291],"our":[212,245,315],"ability":[213],"engineer":[215],"grids":[216],"maximise":[218],"sensitivity":[220,317,336],"QFI":[223,289],"matrix.":[224],"Hence,":[225],"derive":[227],"generators":[229,271],"local":[231],"translations":[232],"unitary":[234],"evolutions":[235],"describe":[237],"general":[239,260,456],"deformation,":[241],"show":[243],"result":[246,261],"multi-parameter":[249,393],"extension":[250],"other":[252],"results":[253],"literature.":[256],"obtain":[258],"matrix":[267,290],"(QFIM)":[268],"through":[269],"these":[270],"deformation":[275],"explore":[277,307],"specific":[278],"spatial":[279],"maps,":[280],"including":[281],"composite":[282],"stretches,":[283],"shears,":[284],"rotations.":[286],"Since":[287],"only":[292],"properties":[295],"probe":[298],"configuration":[302],"modify":[311],"both":[312,423],"enhance":[314],"determine":[319],"deformation.":[323],"Physically":[324],"motivated,":[325],"best":[329],"arrangement":[330],"enhances":[334],"set":[341],"number":[342],"\\nFinally,":[347],"complex":[355,381],"squeezing":[356,382,413],"operation":[357,383],"phase":[359],"space.":[360],"The":[361,440],"use":[362],"squeezed":[364],"ubiquitous":[371],"optics,":[374],"complete":[377],"characterisation":[378],"pivotal":[385],"fundamental":[387,477],"reasons.":[388],"true":[392],"incompatible":[398],"observables.":[399],"Specifically,":[400],"symmetric":[405],"logarithmic":[406],"derivates":[407],"(SLDs)":[408],"amplitude":[410],"directional":[412],"do":[414],"commute.":[416],"prohibits":[418],"simultaneous":[419],"estimates":[421],"parameters,":[424],"even":[425],"asymptotic":[428],"limit.":[429],"As":[430],"result,":[432],"finding":[436],"separable":[437],"estimates.":[439],"Cram\u00e9r-Rao":[441],"bound":[442],"determined":[444],"provide":[446],"theoretical":[448],"benchmark":[449],"bi-variate":[452],"mode":[458],"Gaussian":[459],"probes.":[460],"Using":[461],"SLDs,":[465],"present":[467],"practical":[469],"experimental":[470],"implementation":[471],"realise":[474],"individual":[476],"bounds.":[479]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2020,"cited_by_count":1}],"updated_date":"2026-11-08T12:12:28.789561","created_date":"2019-06-14T00:00:00"}
