{"id":"https://openalex.org/W7225428287","doi":"https://doi.org/10.5281/zenodo.24009206","title":"Observability and Identifiability of Quantum Near-Extremal Black Holes","display_name":"Observability and Identifiability of Quantum Near-Extremal Black Holes","publication_year":2026,"publication_date":"2026-11-06","ids":{"openalex":"https://openalex.org/W7225428287","doi":"https://doi.org/10.5281/zenodo.24009206"},"language":"en","primary_location":{"id":"doi:10.5281/zenodo.24009206","doi":"https://doi.org/10.5281/zenodo.24009206","is_oa":true,"landing_page_url":"https://doi.org/10.5281/zenodo.24009206","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"},"volume":null,"type":"preprint","is_traditional":true,"indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doi.org/10.5281/zenodo.24009206","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5160999107","display_name":"Tatsuya Takahashi","orcid":"https://orcid.org/0009-0002-6148-0821","observed_orcids":["https://orcid.org/0009-0002-6148-0821"]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Takahashi, Tatsuya","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0009-0002-6148-0821","affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5160999107"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":4,"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":0.0003000000142492354,"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/T10744","display_name":"Astrophysical Phenomena and Observations","score":0.00019999999494757503,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"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/near-extremal-black-holes","display_name":"near-extremal black holes","score":0.9589999914169312},{"id":"https://openalex.org/keywords/reissner-nordstrom-black-hole","display_name":"Reissner-Nordstr\u00f6m black hole","score":0.890999972820282},{"id":"https://openalex.org/keywords/quantum-corrections","display_name":"quantum corrections","score":0.5519999861717224},{"id":"https://openalex.org/keywords/black-hole-spectroscopy","display_name":"black hole spectroscopy","score":0.5329999923706055},{"id":"https://openalex.org/keywords/inverse-problems","display_name":"inverse problems","score":0.6420000195503235},{"id":"https://openalex.org/keywords/identifiability","display_name":"identifiability","score":0.7580000162124634},{"id":"https://openalex.org/keywords/observability","display_name":"observability","score":0.6639999747276306},{"id":"https://openalex.org/keywords/spectral-resolution","display_name":"spectral resolution","score":0.44699999690055847},{"id":"https://openalex.org/keywords/null-tests","display_name":"null tests","score":0.4020000100135803}],"concepts":[{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.7106000185012817},{"id":"https://openalex.org/C32848918","wikidata":"https://www.wikidata.org/wiki/Q845789","display_name":"Observable","level":2,"score":0.6991000175476074},{"id":"https://openalex.org/C36299963","wikidata":"https://www.wikidata.org/wiki/Q1369844","display_name":"Observability","level":2,"score":0.46239998936653137},{"id":"https://openalex.org/C57691317","wikidata":"https://www.wikidata.org/wiki/Q1289248","display_name":"Scalar (mathematics)","level":2,"score":0.45840001106262207},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.4259999990463257},{"id":"https://openalex.org/C84114770","wikidata":"https://www.wikidata.org/wiki/Q46344","display_name":"Quantum","level":2,"score":0.4058000147342682},{"id":"https://openalex.org/C99844830","wikidata":"https://www.wikidata.org/wiki/Q102441924","display_name":"Scaling","level":2,"score":0.39259999990463257},{"id":"https://openalex.org/C74650414","wikidata":"https://www.wikidata.org/wiki/Q11397","display_name":"Classical mechanics","level":1,"score":0.37529999017715454},{"id":"https://openalex.org/C106301342","wikidata":"https://www.wikidata.org/wiki/Q4117933","display_name":"Entropy (arrow of time)","level":2,"score":0.35830000042915344},{"id":"https://openalex.org/C195065555","wikidata":"https://www.wikidata.org/wiki/Q214881","display_name":"Curvature","level":2,"score":0.35409998893737793},{"id":"https://openalex.org/C159317903","wikidata":"https://www.wikidata.org/wiki/Q3198","display_name":"Photon","level":2,"score":0.34940001368522644},{"id":"https://openalex.org/C79464548","wikidata":"https://www.wikidata.org/wiki/Q464794","display_name":"Minkowski space","level":2,"score":0.32690000534057617},{"id":"https://openalex.org/C130044071","wikidata":"https://www.wikidata.org/wiki/Q103585","display_name":"Graviton","level":3,"score":0.3264000117778778},{"id":"https://openalex.org/C130187892","wikidata":"https://www.wikidata.org/wiki/Q133327","display_name":"Spacetime","level":2,"score":0.3208000063896179},{"id":"https://openalex.org/C149643647","wikidata":"https://www.wikidata.org/wiki/Q986455","display_name":"Energy condition","level":3,"score":0.3111000061035156},{"id":"https://openalex.org/C33332235","wikidata":"https://www.wikidata.org/wiki/Q18362","display_name":"Theoretical physics","level":1,"score":0.28999999165534973},{"id":"https://openalex.org/C121864883","wikidata":"https://www.wikidata.org/wiki/Q677916","display_name":"Statistical physics","level":1,"score":0.2816999852657318},{"id":"https://openalex.org/C122770356","wikidata":"https://www.wikidata.org/wiki/Q1656753","display_name":"Identifiability","level":2,"score":0.28040000796318054},{"id":"https://openalex.org/C110521144","wikidata":"https://www.wikidata.org/wiki/Q193460","display_name":"Scalar field","level":2,"score":0.2799000144004822},{"id":"https://openalex.org/C83581075","wikidata":"https://www.wikidata.org/wiki/Q1361503","display_name":"Excitation","level":2,"score":0.2743000090122223},{"id":"https://openalex.org/C90167683","wikidata":"https://www.wikidata.org/wiki/Q903040","display_name":"Impact parameter","level":2,"score":0.2727000117301941},{"id":"https://openalex.org/C15706264","wikidata":"https://www.wikidata.org/wiki/Q230883","display_name":"Quantum state","level":3,"score":0.26440000534057617},{"id":"https://openalex.org/C191486275","wikidata":"https://www.wikidata.org/wiki/Q210028","display_name":"Scattering","level":2,"score":0.2502000033855438}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.5281/zenodo.24009206","doi":"https://doi.org/10.5281/zenodo.24009206","is_oa":true,"landing_page_url":"https://doi.org/10.5281/zenodo.24009206","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"},{"id":"doi:10.5281/zenodo.24009207","doi":"https://doi.org/10.5281/zenodo.24009207","is_oa":true,"landing_page_url":"https://doi.org/10.5281/zenodo.24009207","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"doi:10.5281/zenodo.24009206","doi":"https://doi.org/10.5281/zenodo.24009206","is_oa":true,"landing_page_url":"https://doi.org/10.5281/zenodo.24009206","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W4409489819","https://openalex.org/W7225406871","https://openalex.org/W3098827368","https://openalex.org/W4414755081","https://openalex.org/W7213586409","https://openalex.org/W4417262133","https://openalex.org/W7221834355","https://openalex.org/W7220431777","https://openalex.org/W4409160326","https://openalex.org/W7160667284"],"abstract_inverted_index":{"Quantum":[0],"fluctuations":[1],"of":[2,201],"a":[3,83,197],"near-AdS2":[4],"throat":[5,93],"can":[6,81,138],"strongly":[7],"modify":[8],"low-frequency":[9],"scattering":[10],"while":[11],"spacetime":[12],"curvature":[13],"remains":[14,94],"small.":[15],"A":[16],"large":[17],"quantum":[18],"correction,":[19],"however,":[20],"need":[21,32],"not":[22,33,213],"be":[23],"observable":[24,30],"in":[25,86],"finite":[26],"time,":[27],"and":[28,63,73,96,121,130,147,157,172,184,209],"an":[29,45,215],"correction":[31],"identify":[34,125],"the":[35,88,92,97,105,109,112,126,131,164,193,202],"state":[36],"that":[37],"produced":[38],"it.":[39],"We":[40],"formulate":[41,104],"these":[42],"distinctions":[43],"for":[44],"initially":[46],"spinless,":[47],"near-extremal":[48],"Reissner-Nordstr\u00f6m":[49],"black":[50],"hole.":[51],"First,":[52],"we":[53,103],"impose":[54],"three":[55],"operational":[56],"gates:":[57],"finite-time":[58],"spectral":[59,136],"resolution,":[60],"nondisruptive":[61],"probing,":[62],"statistical/systematic":[64],"distinguishability.":[65],"Passive":[66],"emission":[67],"is":[68,90,100],"disfavored":[69],"by":[70],"entropy":[71],"suppression":[72],"low":[74],"event":[75],"rates,":[76],"whereas":[77],"active":[78],"scalar":[79,113,194],"absorption":[80],"possess":[82],"principle-level":[84],"window":[85],"which":[87],"probe":[89],"classical,":[91],"quantum,":[95],"enhanced":[98],"cross-section":[99],"distinguishable.":[101],"Second,":[102],"inverse":[106],"problem.":[107],"In":[108],"zero-frequency":[110],"limit,":[111],"response":[114],"depends":[115],"only":[116],"on":[117],"x":[118],"=":[119,153,159,168,174],"E_i/E_b":[120],"therefore":[122],"cannot":[123],"separately":[124],"excitation":[127],"energy":[128],"E_i":[129,156,173],"Schwarzian":[132,203],"scale":[133],"E_b.":[134],"Finite-frequency":[135],"information":[137],"lift":[139],"this":[140],"scaling":[141],"degeneracy.":[142],"More":[143],"sharply,":[144],"fixed-helicity":[145],"photon":[146],"graviton":[148],"transparency":[149],"thresholds":[150],"satisfy":[151],"\u03c9_\u03b3":[152],"E_b":[154,167],"\u2212":[155,161,170,176],"\u03c9_g":[158],"3E_b":[160],"E_i,":[162],"yielding":[163],"exact":[165],"inversion":[166],"(\u03c9_g":[169,175],"\u03c9_\u03b3)/2":[171],"3\u03c9_\u03b3)/2.":[177],"The":[178],"two-threshold":[179],"Jacobian":[180],"has":[181],"determinant":[182],"\u22122":[183],"condition":[185],"number":[186],"approximately":[187],"5.83.":[188],"Threshold-inferred":[189],"parameters":[190],"also":[191],"predict":[192],"response,":[195],"providing":[196],"cross-channel":[198],"null":[199],"test":[200],"description.":[204],"Our":[205],"claims":[206],"are":[207],"structural":[208],"principle-level;":[210],"they":[211],"do":[212],"constitute":[214],"astrophysical":[216],"detector":[217],"forecast.":[218]},"counts_by_year":[{"year":2026,"cited_by_count":4}],"updated_date":"2026-11-09T13:22:03.289127","created_date":"2026-11-07T00:00:00"}