{"id":"https://openalex.org/W7212937818","doi":"https://doi.org/10.48550/arxiv.2609.12527","title":"Extended Wigner's Friend Scenarios with Agent-like Observers on Quantum Computers","display_name":"Extended Wigner's Friend Scenarios with Agent-like Observers on Quantum Computers","publication_year":2026,"publication_date":"2026-09-11","ids":{"openalex":"https://openalex.org/W7212937818","doi":"https://doi.org/10.48550/arxiv.2609.12527"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2609.12527","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.12527","pdf_url":"https://arxiv.org/pdf/2609.12527","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"},"volume":null,"type":"preprint","is_traditional":true,"indexed_in":["arxiv","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2609.12527","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5148795793","display_name":"Joshua Laux","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I35440088","display_name":"ETH Zurich","ror":"https://ror.org/05a28rw58","country_code":"CH","type":"education","lineage":["https://openalex.org/I2799323385","https://openalex.org/I35440088"]},{"id":"https://openalex.org/I4405254722","display_name":"Institute for Theoretical Physics","ror":"https://ror.org/025en1p25","country_code":"CH","type":"facility","lineage":["https://openalex.org/I2799323385","https://openalex.org/I35440088","https://openalex.org/I4405254722"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Laux, Joshua","raw_affiliation_strings":["Institute for Theoretical Physics , ETH Z\u00fcrich , 8093 Z\u00fcrich , Switzerland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute for Theoretical Physics , ETH Z\u00fcrich , 8093 Z\u00fcrich , Switzerland","institution_ids":["https://openalex.org/I35440088","https://openalex.org/I4405254722"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5078802033","display_name":"Eric G. Cavalcanti","orcid":"https://orcid.org/0000-0001-9627-0520","observed_orcids":["https://orcid.org/0000-0001-9627-0520"]},"institutions":[{"id":"https://openalex.org/I11701301","display_name":"Griffith University","ror":"https://ror.org/02sc3r913","country_code":"AU","type":"education","lineage":["https://openalex.org/I11701301"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Cavalcanti, Eric G.","raw_affiliation_strings":["Quantum and Advanced Technologies Research Institute , Griffith University , Gold Coast , QLD 4222 , Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Quantum and Advanced Technologies Research Institute , Griffith University , Gold Coast , QLD 4222 , Australia","institution_ids":["https://openalex.org/I11701301"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":0,"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/T10622","display_name":"Quantum Mechanics and Applications","score":0.9970999956130981,"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/T10622","display_name":"Quantum Mechanics and Applications","score":0.9970999956130981,"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/T10020","display_name":"Quantum Information and Cryptography","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":0.0008999999845400453,"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/wigner-s-friend","display_name":"Wigner's friend","score":0.8920000195503235},{"id":"https://openalex.org/keywords/quantum-measurement-problem","display_name":"measurement problem","score":0.4830000102519989},{"id":"https://openalex.org/keywords/ai-agents","display_name":"AI agents","score":0.6610000133514404},{"id":"https://openalex.org/keywords/quantum-circuits","display_name":"quantum circuits","score":0.5789999961853027},{"id":"https://openalex.org/keywords/ibm-quantum-hardware","display_name":"IBM quantum hardware","score":0.574999988079071},{"id":"https://openalex.org/keywords/born-rule","display_name":"Born rule","score":0.6430000066757202}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5996000170707703},{"id":"https://openalex.org/C2780801425","wikidata":"https://www.wikidata.org/wiki/Q5164392","display_name":"Construct (python library)","level":2,"score":0.595300018787384},{"id":"https://openalex.org/C84114770","wikidata":"https://www.wikidata.org/wiki/Q46344","display_name":"Quantum","level":2,"score":0.585099995136261},{"id":"https://openalex.org/C2776639384","wikidata":"https://www.wikidata.org/wiki/Q840396","display_name":"Ideal (ethics)","level":2,"score":0.5595999956130981},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.5212000012397766},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.4952000081539154},{"id":"https://openalex.org/C2780102774","wikidata":"https://www.wikidata.org/wiki/Q4669873","display_name":"Absoluteness","level":2,"score":0.49070000648498535},{"id":"https://openalex.org/C58053490","wikidata":"https://www.wikidata.org/wiki/Q176555","display_name":"Quantum computer","level":3,"score":0.46619999408721924},{"id":"https://openalex.org/C2778926657","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum system","level":3,"score":0.3961000144481659},{"id":"https://openalex.org/C18762648","wikidata":"https://www.wikidata.org/wiki/Q42213","display_name":"Work (physics)","level":2,"score":0.3716000020503998},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.37139999866485596},{"id":"https://openalex.org/C137019171","wikidata":"https://www.wikidata.org/wiki/Q2623817","display_name":"Quantum algorithm","level":3,"score":0.35350000858306885},{"id":"https://openalex.org/C124148022","wikidata":"https://www.wikidata.org/wiki/Q2122210","display_name":"Quantum circuit","level":5,"score":0.34540000557899475},{"id":"https://openalex.org/C2777212361","wikidata":"https://www.wikidata.org/wiki/Q5127848","display_name":"Class (philosophy)","level":2,"score":0.3212999999523163},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2897000014781952},{"id":"https://openalex.org/C186468114","wikidata":"https://www.wikidata.org/wiki/Q836478","display_name":"Quantum network","level":4,"score":0.2815000116825104},{"id":"https://openalex.org/C51003876","wikidata":"https://www.wikidata.org/wiki/Q1536431","display_name":"Quantum error correction","level":4,"score":0.2808000147342682},{"id":"https://openalex.org/C134146338","wikidata":"https://www.wikidata.org/wiki/Q1815901","display_name":"Electronic circuit","level":2,"score":0.27970001101493835},{"id":"https://openalex.org/C111996192","wikidata":"https://www.wikidata.org/wiki/Q7269075","display_name":"Quantum noise","level":3,"score":0.26179999113082886},{"id":"https://openalex.org/C169699857","wikidata":"https://www.wikidata.org/wiki/Q2122243","display_name":"Quantum information","level":3,"score":0.26030001044273376},{"id":"https://openalex.org/C168167062","wikidata":"https://www.wikidata.org/wiki/Q1117970","display_name":"Component (thermodynamics)","level":2,"score":0.25459998846054077}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:arXiv.org:2609.12527","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.12527","pdf_url":"https://arxiv.org/pdf/2609.12527","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.2609.12527","doi":"https://doi.org/10.48550/arxiv.2609.12527","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2609.12527","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:2609.12527","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.12527","pdf_url":"https://arxiv.org/pdf/2609.12527","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/W7212937818.pdf","grobid_xml":"https://content.openalex.org/works/W7212937818.grobid-xml"},"referenced_works_count":11,"referenced_works":["https://openalex.org/W2795641194","https://openalex.org/W2953086445","https://openalex.org/W2973386290","https://openalex.org/W3048970958","https://openalex.org/W3104348698","https://openalex.org/W3171564644","https://openalex.org/W3182663759","https://openalex.org/W4226029783","https://openalex.org/W4386742860","https://openalex.org/W4414019682","https://openalex.org/W7090745561"],"related_works":["https://openalex.org/W7204801930","https://openalex.org/W4297833456","https://openalex.org/W6909937024","https://openalex.org/W4296608053","https://openalex.org/W4379981797","https://openalex.org/W6888933446","https://openalex.org/W4414019682","https://openalex.org/W3103432173","https://openalex.org/W4394866844","https://openalex.org/W6927086752"],"abstract_inverted_index":{"The":[0,161],"Wigner's":[1,22,124],"friend":[2,213],"thought":[3],"experiment":[4],"raises":[5],"the":[6,38,42,68,72,94,107,140,150,179],"question":[7,27],"of":[8,60,71,152,183],"whether":[9],"quantum":[10,89,103,181,219],"theory":[11],"can":[12],"be":[13],"applied":[14],"consistently":[15],"to":[16,37,50,147,189],"systems":[17,116],"that":[18],"include":[19],"observers.":[20],"Extended":[21,123],"Friend":[23,125],"Scenarios":[24],"develop":[25],"this":[26,91],"by":[28,67],"considering":[29],"several":[30],"observers":[31],"who":[32],"may":[33],"assign":[34],"different":[35],"descriptions":[36],"same":[39],"experiment.":[40],"In":[41],"Local":[43,64,73,185],"Friendliness":[44,74,186],"(LF)":[45],"framework,":[46],"these":[47],"scenarios":[48],"lead":[49],"experimentally":[51],"testable":[52],"inequalities":[53],"derived":[54],"from":[55,106],"assumptions":[56],"such":[57],"as":[58],"Absoluteness":[59],"Observed":[61],"Events":[62],"and":[63,117,166,172],"Agency.":[65],"Motivated":[66],"\"Thoughtful\"":[69],"version":[70],"no-go":[75],"theorem,":[76],"which":[77],"points":[78],"towards":[79,209],"future":[80,155],"LF":[81,197,216],"tests":[82],"with":[83,96,167],"human-level":[84],"artificial":[85],"agents":[86,128],"implemented":[87,201],"on":[88,109,135,149,158,174,218],"computers,":[90],"work":[92],"implements":[93],"\"friend\"":[95],"explicit":[97],"agent-like":[98,115,212],"functionality":[99],"within":[100],"a":[101,121,184,206],"reversible":[102],"circuit.":[104],"Drawing":[105],"literature":[108],"Artificial":[110],"Intelligence,":[111],"we":[112],"construct":[113],"rudimentary":[114],"embed":[118],"them":[119],"into":[120],"one-friend":[122],"Scenario.":[126],"These":[127,203],"store":[129],"measurement":[130],"outcomes,":[131],"condition":[132],"later":[133],"operations":[134],"stored":[136],"information,":[137],"and,":[138],"in":[139,215],"most":[141],"structured":[142,211],"case,":[143],"use":[144],"Born-rule":[145],"probabilities":[146],"bet":[148],"outcomes":[151],"their":[153],"own":[154],"observations":[156],"based":[157],"past":[159],"observations.":[160],"circuits":[162],"are":[163],"simulated":[164],"ideally":[165],"an":[168],"IBM-device":[169],"noise":[170],"model":[171],"executed":[173],"ibm_marrakesh.":[175],"Ideal":[176],"simulations":[177],"reproduce":[178],"maximal":[180],"violation":[182],"inequality":[187],"up":[188],"finite-shot":[190],"fluctuations,":[191],"while":[192],"hardware":[193],"runs":[194],"show":[195],"positive":[196],"violations":[198],"for":[199],"all":[200],"agents.":[202],"results":[204],"provide":[205],"first":[207],"step":[208],"more":[210],"models":[214],"experiments":[217],"computers.":[220]},"counts_by_year":[],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2026-09-15T00:00:00"}