{"id":"https://openalex.org/W23400268","doi":null,"title":"Black hole entropy as entropy of entanglement, or it's curtains for the equivalence principle","display_name":"Black hole entropy as entropy of entanglement, or it's curtains for the equivalence principle","publication_year":2009,"publication_date":"2009-07-07","ids":{"openalex":"https://openalex.org/W23400268","mag":"23400268"},"language":"en","primary_location":{"id":"mag:23400268","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/0907.1190v1","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":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"arXiv (Cornell University)","raw_type":null},"volume":null,"type":"preprint","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/abs/0907.1190v1","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5054329056","display_name":"Samuel L. Braunstein","orcid":"https://orcid.org/0000-0003-4790-136X","observed_orcids":["https://orcid.org/0000-0003-4790-136X"]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Samuel L. Braunstein","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5054329056"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":60,"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/T10025","display_name":"Black Holes and Theoretical Physics","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"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/T10025","display_name":"Black Holes and Theoretical Physics","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"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/T11415","display_name":"Noncommutative and Quantum Gravity Theories","score":0.00019999999494757503,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"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/T12220","display_name":"Quantum Electrodynamics and Casimir Effect","score":9.999999747378752e-05,"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/black-hole-entropy","display_name":"black hole entropy","score":0.996999979019165},{"id":"https://openalex.org/keywords/entanglement-entropy","display_name":"entanglement entropy","score":0.8450000286102295},{"id":"https://openalex.org/keywords/equivalence-principle","display_name":"equivalence principle","score":0.8220000267028809},{"id":"https://openalex.org/keywords/event-horizon","display_name":"event horizon","score":0.9399999976158142},{"id":"https://openalex.org/keywords/black-hole-evaporation","display_name":"black hole evaporation","score":0.8389999866485596},{"id":"https://openalex.org/keywords/bekenstein-hawking-entropy","display_name":"Bekenstein-Hawking entropy","score":0.9490000009536743},{"id":"https://openalex.org/keywords/vacuum-state","display_name":"vacuum state","score":0.35100001096725464},{"id":"https://openalex.org/keywords/planck-scale","display_name":"Planck scale","score":0.5569999814033508}],"concepts":[{"id":"https://openalex.org/C148292158","wikidata":"https://www.wikidata.org/wiki/Q181741","display_name":"Event horizon","level":3,"score":0.8587936162948608},{"id":"https://openalex.org/C121040770","wikidata":"https://www.wikidata.org/wiki/Q215675","display_name":"Quantum entanglement","level":3,"score":0.6502681970596313},{"id":"https://openalex.org/C13183059","wikidata":"https://www.wikidata.org/wiki/Q4290083","display_name":"Membrane paradigm","level":5,"score":0.6290766000747681},{"id":"https://openalex.org/C115026806","wikidata":"https://www.wikidata.org/wiki/Q13582215","display_name":"Black hole complementarity","level":5,"score":0.6253849267959595},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.6183472871780396},{"id":"https://openalex.org/C63745668","wikidata":"https://www.wikidata.org/wiki/Q911284","display_name":"Black hole thermodynamics","level":3,"score":0.6153086423873901},{"id":"https://openalex.org/C50341732","wikidata":"https://www.wikidata.org/wiki/Q880302","display_name":"Black hole (networking)","level":5,"score":0.5655288696289062},{"id":"https://openalex.org/C171364823","wikidata":"https://www.wikidata.org/wiki/Q5511048","display_name":"Fuzzball","level":5,"score":0.5420149564743042},{"id":"https://openalex.org/C144951741","wikidata":"https://www.wikidata.org/wiki/Q131468","display_name":"White hole","level":3,"score":0.5372410416603088},{"id":"https://openalex.org/C104062141","wikidata":"https://www.wikidata.org/wiki/Q2601295","display_name":"Extremal black hole","level":3,"score":0.4806865155696869},{"id":"https://openalex.org/C106301342","wikidata":"https://www.wikidata.org/wiki/Q4117933","display_name":"Entropy (arrow of time)","level":2,"score":0.4771706163883209},{"id":"https://openalex.org/C78945939","wikidata":"https://www.wikidata.org/wiki/Q3646316","display_name":"Nonsingular black hole models","level":5,"score":0.47714826464653015},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.4008643627166748},{"id":"https://openalex.org/C33332235","wikidata":"https://www.wikidata.org/wiki/Q18362","display_name":"Theoretical physics","level":1,"score":0.37453800439834595},{"id":"https://openalex.org/C188655511","wikidata":"https://www.wikidata.org/wiki/Q609501","display_name":"Micro black hole","level":4,"score":0.33231741189956665},{"id":"https://openalex.org/C74650414","wikidata":"https://www.wikidata.org/wiki/Q11397","display_name":"Classical mechanics","level":1,"score":0.3315114974975586},{"id":"https://openalex.org/C84114770","wikidata":"https://www.wikidata.org/wiki/Q46344","display_name":"Quantum","level":2,"score":0.23539814352989197},{"id":"https://openalex.org/C130187892","wikidata":"https://www.wikidata.org/wiki/Q133327","display_name":"Spacetime","level":2,"score":0.19130218029022217},{"id":"https://openalex.org/C183915046","wikidata":"https://www.wikidata.org/wiki/Q1316152","display_name":"Charged black hole","level":4,"score":0.1364022195339203},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.0},{"id":"https://openalex.org/C74172769","wikidata":"https://www.wikidata.org/wiki/Q1446839","display_name":"Routing (electronic design automation)","level":2,"score":0.0},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.0},{"id":"https://openalex.org/C104954878","wikidata":"https://www.wikidata.org/wiki/Q1648707","display_name":"Routing protocol","level":3,"score":0.0},{"id":"https://openalex.org/C89305328","wikidata":"https://www.wikidata.org/wiki/Q1755411","display_name":"Link-state routing protocol","level":4,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"mag:23400268","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/0907.1190v1","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":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"arXiv (Cornell University)","raw_type":null}],"best_oa_location":{"id":"mag:23400268","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/0907.1190v1","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":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"arXiv (Cornell University)","raw_type":null},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W1922629554","https://openalex.org/W1964659993","https://openalex.org/W1988953911","https://openalex.org/W2013888684","https://openalex.org/W2043483422","https://openalex.org/W2053387157","https://openalex.org/W2090386790","https://openalex.org/W2129872856","https://openalex.org/W2130309361","https://openalex.org/W2146720213","https://openalex.org/W2159538982","https://openalex.org/W3099283036"],"related_works":["https://openalex.org/W1975152575","https://openalex.org/W1964659993","https://openalex.org/W7101105263","https://openalex.org/W1912999625","https://openalex.org/W2029645174","https://openalex.org/W2066498793","https://openalex.org/W1996134683","https://openalex.org/W1963689845","https://openalex.org/W2681483052","https://openalex.org/W2114810313"],"abstract_inverted_index":{"Computer":[0],"Science,":[1],"University":[2],"of":[3,18,44,94,104,112],"York,":[4],"York":[5],"YO10":[6],"5DD,":[7],"UK(Dated:":[8],"July":[9],"7,":[10],"2009)The":[11],"equivalence":[12],"principle":[13],"provides":[14],"an":[15,145],"important":[16],"tenet":[17],"black":[19,30,53,95,106,122,153],"hole":[20,31,96,107,123],"physics:":[21],"that":[22],"a":[23,29,52,105],"su\ufb03cientlysmall":[24],"observer":[25],"freely":[26],"falling":[27],"into":[28],"should":[32,66],"experience":[33],"nothing":[34],"special":[35,57],"as":[36,73,92],"she":[37],"passes":[38],"theevent":[39],"horizon":[40,71,116,137],"\u2014":[41],"the":[42,60,69,78,101,114,121,135,152],"boundary":[43,79],"no":[45,56],"return.":[46],"Similarly,":[47],"quantum":[48,64,132],"\ufb01elds":[49,65,133],"impinging":[50],"on":[51],"holeshould":[54],"exhibit":[55],"behavior":[58],"at":[59],"event":[61,70,136],"horizon.":[62],"Indeed":[63],"be":[67,76,139],"entangledacross":[68],"just":[72],"they":[74],"would":[75,130,148],"across":[77,134],"to":[80,126,138],"any":[81],"volume":[82],"in":[83],"\ufb02at":[84],"space.We":[85],"study":[86],"this":[87],"claim":[88],"using":[89],"random":[90],"subsystems":[91],"models":[93],"evaporation.":[97],"We":[98],"\ufb01nd":[99],"thatunless":[100],"Bekenstein-Hawking":[102],"entropy":[103,111],"is":[108],"almost":[109],"entirely":[110],"entanglement,then":[113],"trans-event":[115],"entanglement":[117],"vanishes":[118],"long":[119],"before":[120],"has":[124],"evaporated":[125],"thePlanck":[127],"scale.":[128],"This":[129],"force":[131],"arbitrarily":[140],"far":[141],"fromthe":[142],"vacuum":[143],"state;":[144],"energetic":[146],"curtain":[147],"have":[149],"descended":[150],"around":[151],"hole.":[154]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":10},{"year":2015,"cited_by_count":14},{"year":2014,"cited_by_count":14},{"year":2013,"cited_by_count":9}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}