{"id":"https://openalex.org/W7214047189","doi":"https://doi.org/10.48550/arxiv.2609.24992","title":"Multi-Stage and Multi-Field Inflation in Random Inflationary Landscapes","display_name":"Multi-Stage and Multi-Field Inflation in Random Inflationary Landscapes","publication_year":2026,"publication_date":"2026-09-21","ids":{"openalex":"https://openalex.org/W7214047189","doi":"https://doi.org/10.48550/arxiv.2609.24992"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2609.24992","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.24992","pdf_url":"https://arxiv.org/pdf/2609.24992","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/2609.24992","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5108033261","display_name":"Xingang Chen","orcid":"https://orcid.org/0000-0002-1071-6526","observed_orcids":["https://orcid.org/0000-0002-1071-6526"]},"institutions":[{"id":"https://openalex.org/I4210124175","display_name":"Center for Astrophysics Harvard & Smithsonian","ror":"https://ror.org/03c3r2d17","country_code":"US","type":"education","lineage":["https://openalex.org/I103187081","https://openalex.org/I136199984","https://openalex.org/I4210124175"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Chen, Xingang","raw_affiliation_strings":["Institute for Theory and Computation , Harvard-Smithsonian Center for Astrophysics , 60 Garden Street , Cambridge , MA 02138 , USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute for Theory and Computation , Harvard-Smithsonian Center for Astrophysics , 60 Garden Street , Cambridge , MA 02138 , USA","institution_ids":["https://openalex.org/I4210124175"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060083276","display_name":"Lucas Pinol","orcid":"https://orcid.org/0000-0002-2218-5929","observed_orcids":["https://orcid.org/0000-0002-2218-5929"]},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I204730241","display_name":"Universit\u00e9 Paris Cit\u00e9","ror":"https://ror.org/05f82e368","country_code":"FR","type":"education","lineage":["https://openalex.org/I204730241"]},{"id":"https://openalex.org/I2746051580","display_name":"Universit\u00e9 Paris Sciences et Lettres","ror":"https://ror.org/013cjyk83","country_code":"FR","type":"education","lineage":["https://openalex.org/I2746051580"]},{"id":"https://openalex.org/I29607241","display_name":"\u00c9cole Normale Sup\u00e9rieure - PSL","ror":"https://ror.org/05a0dhs15","country_code":"FR","type":"other","lineage":["https://openalex.org/I2746051580","https://openalex.org/I29607241"]},{"id":"https://openalex.org/I4210129651","display_name":"Laboratoire de Physique de l'Ecole Normale Sup\u00e9rieure","ror":"https://ror.org/03a26mh11","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I204730241","https://openalex.org/I2746051580","https://openalex.org/I2800004676","https://openalex.org/I29607241","https://openalex.org/I39804081","https://openalex.org/I4210129651"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Pinol, Lucas","raw_affiliation_strings":["Laboratoire de Physique de l' \u00c9cole Normale Sup\u00e9rieure , ENS , CNRS , Universit\u00e9 PSL , Sor- bonne Universit\u00e9 , Universit\u00e9 Paris Cit\u00e9 , F-75005 , Paris , France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratoire de Physique de l' \u00c9cole Normale Sup\u00e9rieure , ENS , CNRS , Universit\u00e9 PSL , Sor- bonne Universit\u00e9 , Universit\u00e9 Paris Cit\u00e9 , F-75005 , Paris , France","institution_ids":["https://openalex.org/I1294671590","https://openalex.org/I204730241","https://openalex.org/I2746051580","https://openalex.org/I29607241","https://openalex.org/I4210129651"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5014820609","display_name":"Zhong-zhi Xianyu A","orcid":"https://orcid.org/0000-0001-9779-5580","observed_orcids":["https://orcid.org/0000-0001-9779-5580"]},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xianyu, Zhong-Zhi","raw_affiliation_strings":["Department of Physics , Tsinghua University , Beijing 100084 , China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics , Tsinghua University , Beijing 100084 , China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5129955610","display_name":"Yisong Zhang","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhang, Yisong","raw_affiliation_strings":["Department of Physics , Tsinghua University , Beijing 100084 , China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics , Tsinghua University , Beijing 100084 , China","institution_ids":["https://openalex.org/I99065089"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":7,"corresponding_author_ids":[],"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/T10095","display_name":"Cosmology and Gravitation Theories","score":0.9984999895095825,"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"}},"topics":[{"id":"https://openalex.org/T10095","display_name":"Cosmology and Gravitation Theories","score":0.9984999895095825,"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"}},{"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/T10025","display_name":"Black Holes and Theoretical Physics","score":9.999999747378752e-05,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/multi-field-inflation","display_name":"multi-field inflation","score":0.9950000047683716},{"id":"https://openalex.org/keywords/random-potential","display_name":"random potential","score":0.6740000247955322},{"id":"https://openalex.org/keywords/gaussian-random-potential","display_name":"Gaussian random potential","score":0.7149999737739563},{"id":"https://openalex.org/keywords/slow-roll-inflation","display_name":"slow-roll inflation","score":0.9589999914169312},{"id":"https://openalex.org/keywords/primordial-density-fluctuations","display_name":"primordial density fluctuations","score":0.7820000052452087},{"id":"https://openalex.org/keywords/inflationary-trajectories","display_name":"inflationary trajectories","score":0.8330000042915344}],"concepts":[{"id":"https://openalex.org/C200941418","wikidata":"https://www.wikidata.org/wiki/Q273508","display_name":"Inflation (cosmology)","level":2,"score":0.8083000183105469},{"id":"https://openalex.org/C164008634","wikidata":"https://www.wikidata.org/wiki/Q934257","display_name":"Primordial fluctuations","level":4,"score":0.5950000286102295},{"id":"https://openalex.org/C111030470","wikidata":"https://www.wikidata.org/wiki/Q1430460","display_name":"Curse of dimensionality","level":2,"score":0.5162000060081482},{"id":"https://openalex.org/C149629883","wikidata":"https://www.wikidata.org/wiki/Q660926","display_name":"Fraction (chemistry)","level":2,"score":0.48919999599456787},{"id":"https://openalex.org/C152321242","wikidata":"https://www.wikidata.org/wiki/Q7048759","display_name":"Non-Gaussianity","level":4,"score":0.47839999198913574},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.43779999017715454},{"id":"https://openalex.org/C2780586882","wikidata":"https://www.wikidata.org/wiki/Q7520643","display_name":"Simple (philosophy)","level":2,"score":0.40689998865127563},{"id":"https://openalex.org/C163716315","wikidata":"https://www.wikidata.org/wiki/Q901177","display_name":"Gaussian","level":2,"score":0.3928000032901764},{"id":"https://openalex.org/C149782125","wikidata":"https://www.wikidata.org/wiki/Q160039","display_name":"Econometrics","level":1,"score":0.391400009393692},{"id":"https://openalex.org/C121864883","wikidata":"https://www.wikidata.org/wiki/Q677916","display_name":"Statistical physics","level":1,"score":0.38920000195503235},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.3474999964237213},{"id":"https://openalex.org/C2781291010","wikidata":"https://www.wikidata.org/wiki/Q178580","display_name":"Period (music)","level":2,"score":0.33649998903274536},{"id":"https://openalex.org/C59375849","wikidata":"https://www.wikidata.org/wiki/Q5013513","display_name":"COSMIC cancer database","level":2,"score":0.3228999972343445},{"id":"https://openalex.org/C173153575","wikidata":"https://www.wikidata.org/wiki/Q2576923","display_name":"Inflaton","level":3,"score":0.3154999911785126},{"id":"https://openalex.org/C36963468","wikidata":"https://www.wikidata.org/wiki/Q4356867","display_name":"Inflationary epoch","level":5,"score":0.29019999504089355},{"id":"https://openalex.org/C188386629","wikidata":"https://www.wikidata.org/wiki/Q2902142","display_name":"Big Bang (financial markets)","level":2,"score":0.28600001335144043},{"id":"https://openalex.org/C2777409547","wikidata":"https://www.wikidata.org/wiki/Q17105846","display_name":"Slow roll","level":4,"score":0.2766000032424927},{"id":"https://openalex.org/C61797465","wikidata":"https://www.wikidata.org/wiki/Q1188986","display_name":"Term (time)","level":2,"score":0.2721000015735626}],"mesh":[],"locations_count":3,"locations":[{"id":"pmh:oai:arXiv.org:2609.24992","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.24992","pdf_url":"https://arxiv.org/pdf/2609.24992","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":"pmh:oai:HAL:hal-05781708v1","doi":null,"is_oa":false,"landing_page_url":"https://hal.science/hal-05781708v1","pdf_url":null,"source":{"id":"https://openalex.org/S4306402512","display_name":"HAL","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I4405252976","host_organization_name":"Centre pour la Communication Scientifique Directe","host_organization_lineage":["https://openalex.org/I4405252976"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"2026","raw_type":"info:eu-repo/semantics/preprint"},{"id":"doi:10.48550/arxiv.2609.24992","doi":"https://doi.org/10.48550/arxiv.2609.24992","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2609.24992","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":"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":"pmh:oai:arXiv.org:2609.24992","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.24992","pdf_url":"https://arxiv.org/pdf/2609.24992","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":[{"id":"https://openalex.org/G2012042336","display_name":null,"funder_award_id":"122471 03","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G2994105569","display_name":null,"funder_award_id":"2021YFC2203100","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G4652584675","display_name":null,"funder_award_id":"12275146","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320309622","display_name":"Harvard University","ror":"https://ror.org/03vek6s52"},{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320322392","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7214047189.pdf","grobid_xml":"https://content.openalex.org/works/W7214047189.grobid-xml"},"referenced_works_count":7,"referenced_works":["https://openalex.org/W1968750729","https://openalex.org/W1974641610","https://openalex.org/W2029834871","https://openalex.org/W2043379579","https://openalex.org/W2166712656","https://openalex.org/W2596031503","https://openalex.org/W2986218762"],"related_works":["https://openalex.org/W2734704143","https://openalex.org/W2060988944","https://openalex.org/W7099735932","https://openalex.org/W2078616380","https://openalex.org/W3000681280","https://openalex.org/W2112151672","https://openalex.org/W2884779150","https://openalex.org/W1986426943","https://openalex.org/W2491592120","https://openalex.org/W2485891501"],"abstract_inverted_index":{"Generic":[0],"potentials":[1,111],"in":[2,138],"an":[3],"inflationary":[4,118,136,161,166,183],"landscape":[5,23,156],"are":[6,24],"typically":[7],"too":[8],"steep":[9],"to":[10,26,37,72],"support":[11,27],"a":[12,40,113,131],"prolonged":[13,42],"period":[14,43],"of":[15,21,32,44,56,81,116,125,134,178],"cosmic":[16],"inflation.":[17,29],"Atypical":[18],"flat":[19],"regions":[20,34],"the":[22,79,82,89,96,101,117,122,160],"required":[25],"successful":[28,165],"The":[30,86],"occurrence":[31,124],"such":[33],"leads":[35],"broadly":[36],"two":[38,127],"possibilities:":[39],"single":[41],"slow-roll":[45,84],"inflation":[46,57],"(which":[47,65],"we":[48,66,120,168],"call":[49,67],"single-stage":[50],"inflation),":[51,69],"or":[52],"multiple":[53],"shorter":[54],"periods":[55],"separated":[58],"by":[59],"transient":[60],"departures":[61,77],"from":[62,78],"slow":[63],"roll":[64],"multi-stage":[68,135,180],"giving":[70],"rise":[71],"primordial":[73,97],"features":[74],"and":[75,145,147,163,174,181],"other":[76],"behavior":[80],"simplest":[83],"model.":[85,104],"former":[87],"is":[88],"possibility":[90],"most":[91],"commonly":[92],"assumed":[93],"when":[94],"deriving":[95],"density":[98],"fluctuations":[99],"for":[100],"Big":[102],"Bang":[103],"In":[105,158],"this":[106,148],"paper,":[107],"using":[108],"Gaussian":[109],"random":[110],"as":[112],"simple":[114],"model":[115],"landscape,":[119],"study":[121],"relative":[123],"these":[126],"possibilities.":[128],"We":[129],"find":[130],"substantial":[132],"fraction":[133,149],"trajectories":[137],"landscapes":[139,162],"with":[140,151],"field-space":[141],"dimensions":[142],"one,":[143],"two,":[144],"three,":[146],"increases":[150],"dimensionality":[152],"at":[153],"fixed":[154],"typical":[155],"curvature.":[157],"constructing":[159],"identifying":[164],"trajectories,":[167],"also":[169],"define":[170],"several":[171],"relevant":[172],"quantities":[173],"classify":[175],"detailed":[176],"properties":[177],"both":[179],"multi-field":[182],"trajectories.":[184]},"counts_by_year":[{"year":2026,"cited_by_count":2}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2026-09-23T00:00:00"}
