{"id":"https://openalex.org/W3104297939","doi":null,"title":"Quantum discord in the ground and thermal states of spin clusters","display_name":"Quantum discord in the ground and thermal states of spin clusters","publication_year":2011,"publication_date":"2011-01-01","ids":{"openalex":"https://openalex.org/W3104297939","mag":"3104297939"},"language":"en","primary_location":{"id":"pmh:oai:CiteSeerX.psu:10.1.1.757.9451","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.757.9451","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://arxiv.org/pdf/1012.0650.pdf","raw_type":"text"},"volume":null,"type":"preprint","indexed_in":[],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"Amit Kumar Pal","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I152754861","display_name":"Bose Institute","ror":"https://ror.org/01a5mqy88","country_code":"IN","type":"facility","lineage":["https://openalex.org/I152754861"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Amit Kumar Pal","raw_affiliation_strings":["Department of Physics, Bose Institute, 93/1 Acharya Prafulla Chandra Road, Kolkata-700\u2009009, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics, Bose Institute, 93/1 Acharya Prafulla Chandra Road, Kolkata-700\u2009009, India","institution_ids":["https://openalex.org/I152754861"]}]},{"author_position":"last","author":{"id":null,"display_name":"Indrani Bose","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I152754861","display_name":"Bose Institute","ror":"https://ror.org/01a5mqy88","country_code":"IN","type":"facility","lineage":["https://openalex.org/I152754861"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Indrani Bose","raw_affiliation_strings":["Department of Physics, Bose Institute, 93/1 Acharya Prafulla Chandra Road, Kolkata-700\u2009009, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics, Bose Institute, 93/1 Acharya Prafulla Chandra Road, Kolkata-700\u2009009, India","institution_ids":["https://openalex.org/I152754861"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I152754861"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":31,"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":0.8881999850273132,"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":0.8881999850273132,"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/T11804","display_name":"Quantum many-body systems","score":0.04780000075697899,"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":0.023099999874830246,"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-discord","display_name":"quantum discord","score":1.0},{"id":"https://openalex.org/keywords/spin-clusters","display_name":"spin clusters","score":0.9390000104904175},{"id":"https://openalex.org/keywords/molecular-magnets","display_name":"molecular magnets","score":0.9210000038146973},{"id":"https://openalex.org/keywords/ground-state","display_name":"ground state","score":0.5580000281333923},{"id":"https://openalex.org/keywords/thermal-states","display_name":"thermal states","score":0.8529999852180481},{"id":"https://openalex.org/keywords/pairwise-entanglement","display_name":"pairwise entanglement","score":0.8659999966621399},{"id":"https://openalex.org/keywords/first-order-quantum-phase-transition","display_name":"first-order quantum phase transition","score":0.8180000185966492},{"id":"https://openalex.org/keywords/dephasing-dynamics","display_name":"dephasing dynamics","score":0.8700000047683716},{"id":"https://openalex.org/keywords/anisotropy","display_name":"anisotropy","score":0.7590000033378601},{"id":"https://openalex.org/keywords/ferromagnetic-and-antiferromagnetic-interactions","display_name":"ferromagnetic and antiferromagnetic interactions","score":0.8169999718666077},{"id":"https://openalex.org/keywords/quantum-correlations","display_name":"quantum correlations","score":0.4300000071525574}],"concepts":[{"id":"https://openalex.org/C121040770","wikidata":"https://www.wikidata.org/wiki/Q215675","display_name":"Quantum entanglement","level":3,"score":0.7166697978973389},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.6360935568809509},{"id":"https://openalex.org/C69523127","wikidata":"https://www.wikidata.org/wiki/Q4480008","display_name":"Ground state","level":2,"score":0.6012712121009827},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.5366918444633484},{"id":"https://openalex.org/C42704618","wikidata":"https://www.wikidata.org/wiki/Q910917","display_name":"Spin (aerodynamics)","level":2,"score":0.536222517490387},{"id":"https://openalex.org/C139356082","wikidata":"https://www.wikidata.org/wiki/Q7269038","display_name":"Quantum discord","level":4,"score":0.5345268845558167},{"id":"https://openalex.org/C155355069","wikidata":"https://www.wikidata.org/wiki/Q575224","display_name":"Antiferromagnetism","level":2,"score":0.4836060106754303},{"id":"https://openalex.org/C26873012","wikidata":"https://www.wikidata.org/wiki/Q214781","display_name":"Condensed matter physics","level":1,"score":0.4785671532154083},{"id":"https://openalex.org/C14179194","wikidata":"https://www.wikidata.org/wiki/Q2367257","display_name":"Superexchange","level":3,"score":0.4496845602989197},{"id":"https://openalex.org/C72190298","wikidata":"https://www.wikidata.org/wiki/Q2118253","display_name":"Quantum phase transition","level":3,"score":0.43611446022987366},{"id":"https://openalex.org/C203087015","wikidata":"https://www.wikidata.org/wiki/Q378201","display_name":"Qubit","level":3,"score":0.4177861511707306},{"id":"https://openalex.org/C84114770","wikidata":"https://www.wikidata.org/wiki/Q46344","display_name":"Quantum","level":2,"score":0.3776007294654846},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"pmh:oai:CiteSeerX.psu:10.1.1.757.9451","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.757.9451","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://arxiv.org/pdf/1012.0650.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":37,"referenced_works":["https://openalex.org/W1571385165","https://openalex.org/W1798737247","https://openalex.org/W1963988846","https://openalex.org/W1970055540","https://openalex.org/W1977794427","https://openalex.org/W1987315149","https://openalex.org/W1993421674","https://openalex.org/W1994015564","https://openalex.org/W1996075932","https://openalex.org/W1998745872","https://openalex.org/W2000467687","https://openalex.org/W2004143918","https://openalex.org/W2019659774","https://openalex.org/W2020582629","https://openalex.org/W2025146698","https://openalex.org/W2025669871","https://openalex.org/W2026688162","https://openalex.org/W2029100014","https://openalex.org/W2033729910","https://openalex.org/W2038645424","https://openalex.org/W2041389295","https://openalex.org/W2041867773","https://openalex.org/W2045434389","https://openalex.org/W2051684182","https://openalex.org/W2055754097","https://openalex.org/W2057445712","https://openalex.org/W2064509226","https://openalex.org/W2072087468","https://openalex.org/W2073595591","https://openalex.org/W2082704504","https://openalex.org/W2084983874","https://openalex.org/W2094648505","https://openalex.org/W2106756917","https://openalex.org/W2125303188","https://openalex.org/W2130117852","https://openalex.org/W2171823766","https://openalex.org/W2764347725"],"related_works":["https://openalex.org/W1985146653","https://openalex.org/W2080048181","https://openalex.org/W2031644732","https://openalex.org/W1992112254","https://openalex.org/W2139530122","https://openalex.org/W2144138659","https://openalex.org/W1964844638","https://openalex.org/W2613516066","https://openalex.org/W2062827251","https://openalex.org/W2949149324"],"abstract_inverted_index":{"Quantum":[0],"discord":[1],"(QD)":[2],"is":[3,111,150,152,206],"a":[4,12,40,45,49,74,88,95,188,226,234,238],"general":[5],"measure":[6],"of":[7,29,31,51,65,70,76,90,98,120,122,137,163,173,187,194,218,244],"bipartite":[8],"quantum":[9,16,142],"correlations":[10],"with":[11,200],"potential":[13],"role":[14],"in":[15,59,101,117,125,134,159,237,241],"information":[17],"processing":[18],"tasks.":[19],"Spin":[20],"clusters":[21],"serve":[22],"as":[23,73,94,211],"ideal":[24],"candidates":[25],"for":[26,106],"the":[27,32,57,60,66,71,99,102,108,118,123,126,135,138,154,160,171,174,177,185,192,195,216,219,222,242,245],"implementation":[28],"some":[30,121],"associated":[33],"protocols.":[34],"In":[35,215],"this":[36],"paper,":[37],"we":[38],"consider":[39],"symmetric":[41],"spin":[42,197,220],"trimer":[43,103],"and":[44,55,62,82,128,131,176,232],"tetramer":[46],"which":[47,107],"describe":[48],"number":[50,89],"known":[52,112],"molecular":[53],"magnets":[54],"compute":[56],"QD":[58,72,100,139,155,175,205],"ground":[61,104],"thermal":[63],"states":[64],"clusters.":[67],"The":[68,204],"variations":[69,124],"function":[75],"an":[77],"anisotropy":[78],"parameter,":[79],"magnetic":[80],"field":[81],"temperature":[83,164],"are":[84],"investigated.":[85],"We":[86,168],"obtain":[87],"interesting":[91],"results":[92],"such":[93],"finite":[96,239],"value":[97,228,236],"state":[105,199],"pairwise":[109,178,223],"entanglement":[110,179,224],"to":[113,208],"be":[114],"zero,":[115],"differences":[116],"nature":[119],"ferromagnetic":[127],"antiferromagnetic":[129],"cases,":[130],"discontinuous":[132],"jumps":[133],"magnitude":[136],"at":[140,180,229],"first-order":[141],"phase":[143],"transition":[144],"points.":[145],"A":[146],"remarkable":[147],"feature":[148],"that":[149,153],"observed":[151],"completely":[156],"vanishes":[157],"only":[158],"asymptotic":[161],"limit":[162],"T":[165,181],"\u2192":[166,213],"\u221e.":[167,214],"further":[169],"study":[170],"dynamics":[172],"=":[182],"0":[183],"under":[184],"effect":[186],"dephasing":[189],"channel":[190],"describing":[191],"interaction":[193],"reduced":[196],"cluster":[198],"independent":[201],"local":[202],"environments.":[203],"found":[207],"vanish":[209],"asymptotically":[210],"t":[212],"case":[217,243],"trimer,":[221],"has":[225],"zero":[227,235],"all":[230],"times":[231],"reaches":[233],"time":[240],"tetramer.":[246]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":2},{"year":2017,"cited_by_count":3},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":6},{"year":2012,"cited_by_count":10}],"updated_date":"2026-11-03T10:50:19.383937","created_date":"2020-11-23T00:00:00"}