{"id":"https://openalex.org/W7221587534","doi":"https://doi.org/10.26434/chemrxiv.15002034/v2","title":"A Statistical Mechanics Perspective on Memory and Forgetting in Nonequilibrated Polymer Films","display_name":"A Statistical Mechanics Perspective on Memory and Forgetting in Nonequilibrated Polymer Films","publication_year":2026,"publication_date":"2026-10-13","ids":{"openalex":"https://openalex.org/W7221587534","doi":"https://doi.org/10.26434/chemrxiv.15002034/v2"},"language":"en","primary_location":{"id":"doi:10.26434/chemrxiv.15002034/v2","doi":"https://doi.org/10.26434/chemrxiv.15002034/v2","is_oa":true,"landing_page_url":"https://doi.org/10.26434/chemrxiv.15002034/v2","pdf_url":"https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15002034/v2","source":{"id":"https://openalex.org/S4393918830","display_name":"ChemRxiv","issn_l":"2573-2293","issn":["2573-2293"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"posted-content"},"volume":null,"type":"preprint","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15002034/v2","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5080673458","display_name":"Mithun Chowdhury","orcid":"https://orcid.org/0000-0002-2513-6006","observed_orcids":["https://orcid.org/0000-0002-2513-6006"]},"institutions":[{"id":"https://openalex.org/I162827531","display_name":"Indian Institute of Technology Bombay","ror":"https://ror.org/02qyf5152","country_code":"IN","type":"education","lineage":["https://openalex.org/I162827531"]}],"countries":["IN"],"is_corresponding":true,"raw_author_name":"Mithun Chowdhury","raw_affiliation_strings":["Department of Metallurgical Engineering and Materials Science","Indian Institute of Technology Bombay"],"raw_orcid":"https://orcid.org/0000-0002-2513-6006","affiliations":[{"raw_affiliation_string":"Department of Metallurgical Engineering and Materials Science","institution_ids":[]},{"raw_affiliation_string":"Indian Institute of Technology Bombay","institution_ids":["https://openalex.org/I162827531"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5080673458"],"corresponding_institution_ids":["https://openalex.org/I162827531"],"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/T10474","display_name":"Material Dynamics and Properties","score":0.8838000297546387,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10474","display_name":"Material Dynamics and Properties","score":0.8838000297546387,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11379","display_name":"Rheology and Fluid Dynamics Studies","score":0.10750000178813934,"subfield":{"id":"https://openalex.org/subfields/1507","display_name":"Fluid Flow and Transfer Processes"},"field":{"id":"https://openalex.org/fields/15","display_name":"Chemical Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11520","display_name":"Advanced Thermodynamics and Statistical Mechanics","score":0.0027000000700354576,"subfield":{"id":"https://openalex.org/subfields/3109","display_name":"Statistical and Nonlinear 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/forgetting","display_name":"forgetting","score":0.7620000243186951},{"id":"https://openalex.org/keywords/stress-relaxation","display_name":"stress relaxation","score":0.7910000085830688},{"id":"https://openalex.org/keywords/non-markovian-dynamics","display_name":"non-Markovian dynamics","score":0.8090000152587891},{"id":"https://openalex.org/keywords/mori-zwanzig-formalism","display_name":"Mori-Zwanzig formalism","score":0.859000027179718},{"id":"https://openalex.org/keywords/generalized-langevin-equation","display_name":"generalized Langevin equation","score":0.9419999718666077},{"id":"https://openalex.org/keywords/memory-kernel","display_name":"memory kernel","score":0.7480000257492065},{"id":"https://openalex.org/keywords/stretched-exponential-relaxation","display_name":"stretched exponential relaxation","score":0.8980000019073486},{"id":"https://openalex.org/keywords/conformational-entropy","display_name":"conformational entropy","score":0.7940000295639038},{"id":"https://openalex.org/keywords/spin-coated-thin-films","display_name":"spin-coated films","score":0.8529999852180481},{"id":"https://openalex.org/keywords/topological-constraints","display_name":"topological constraints","score":0.6919999718666077}],"concepts":[{"id":"https://openalex.org/C74859849","wikidata":"https://www.wikidata.org/wiki/Q2466686","display_name":"Non-equilibrium thermodynamics","level":2,"score":0.7807000279426575},{"id":"https://openalex.org/C121864883","wikidata":"https://www.wikidata.org/wiki/Q677916","display_name":"Statistical physics","level":1,"score":0.7035999894142151},{"id":"https://openalex.org/C2776029896","wikidata":"https://www.wikidata.org/wiki/Q3935810","display_name":"Relaxation (psychology)","level":2,"score":0.6467000246047974},{"id":"https://openalex.org/C202974441","wikidata":"https://www.wikidata.org/wiki/Q2576844","display_name":"Stress relaxation","level":3,"score":0.5540000200271606},{"id":"https://openalex.org/C186541917","wikidata":"https://www.wikidata.org/wiki/Q910483","display_name":"Viscoelasticity","level":2,"score":0.5059000253677368},{"id":"https://openalex.org/C521977710","wikidata":"https://www.wikidata.org/wiki/Q81163","display_name":"Polymer","level":2,"score":0.5},{"id":"https://openalex.org/C99844830","wikidata":"https://www.wikidata.org/wiki/Q102441924","display_name":"Scaling","level":2,"score":0.47620001435279846},{"id":"https://openalex.org/C7149132","wikidata":"https://www.wikidata.org/wiki/Q1377840","display_name":"Forgetting","level":2,"score":0.46389999985694885},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.4002000093460083},{"id":"https://openalex.org/C207282930","wikidata":"https://www.wikidata.org/wiki/Q5380811","display_name":"Entropy production","level":2,"score":0.3684000074863434},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.3506999909877777},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.3352999985218048},{"id":"https://openalex.org/C106301342","wikidata":"https://www.wikidata.org/wiki/Q4117933","display_name":"Entropy (arrow of time)","level":2,"score":0.3156999945640564},{"id":"https://openalex.org/C99874945","wikidata":"https://www.wikidata.org/wiki/Q188715","display_name":"Statistical mechanics","level":2,"score":0.3028999865055084},{"id":"https://openalex.org/C33332235","wikidata":"https://www.wikidata.org/wiki/Q18362","display_name":"Theoretical physics","level":1,"score":0.289900004863739},{"id":"https://openalex.org/C135402231","wikidata":"https://www.wikidata.org/wiki/Q898440","display_name":"Dissipation","level":2,"score":0.2840999960899353},{"id":"https://openalex.org/C21036866","wikidata":"https://www.wikidata.org/wiki/Q181767","display_name":"Stress (linguistics)","level":2,"score":0.2791000008583069},{"id":"https://openalex.org/C182365436","wikidata":"https://www.wikidata.org/wiki/Q50701","display_name":"Variable (mathematics)","level":2,"score":0.26589998602867126},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.2655999958515167},{"id":"https://openalex.org/C112401455","wikidata":"https://www.wikidata.org/wiki/Q178036","display_name":"Brownian motion","level":2,"score":0.2624000012874603},{"id":"https://openalex.org/C122865956","wikidata":"https://www.wikidata.org/wiki/Q825643","display_name":"Glass transition","level":3,"score":0.25780001282691956},{"id":"https://openalex.org/C99742106","wikidata":"https://www.wikidata.org/wiki/Q255996","display_name":"Equipartition theorem","level":3,"score":0.2572000026702881},{"id":"https://openalex.org/C2778790127","wikidata":"https://www.wikidata.org/wiki/Q484885","display_name":"Erasure","level":2,"score":0.257099986076355},{"id":"https://openalex.org/C59593255","wikidata":"https://www.wikidata.org/wiki/Q901663","display_name":"Molecular dynamics","level":2,"score":0.25220000743865967}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.26434/chemrxiv.15002034/v2","doi":"https://doi.org/10.26434/chemrxiv.15002034/v2","is_oa":true,"landing_page_url":"https://doi.org/10.26434/chemrxiv.15002034/v2","pdf_url":"https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15002034/v2","source":{"id":"https://openalex.org/S4393918830","display_name":"ChemRxiv","issn_l":"2573-2293","issn":["2573-2293"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"posted-content"}],"best_oa_location":{"id":"doi:10.26434/chemrxiv.15002034/v2","doi":"https://doi.org/10.26434/chemrxiv.15002034/v2","is_oa":true,"landing_page_url":"https://doi.org/10.26434/chemrxiv.15002034/v2","pdf_url":"https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15002034/v2","source":{"id":"https://openalex.org/S4393918830","display_name":"ChemRxiv","issn_l":"2573-2293","issn":["2573-2293"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"posted-content"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7221587534.pdf","grobid_xml":"https://content.openalex.org/works/W7221587534.grobid-xml"},"referenced_works_count":1,"referenced_works":["https://openalex.org/W1996583965"],"related_works":["https://openalex.org/W4390608339","https://openalex.org/W2945685947","https://openalex.org/W4401705583","https://openalex.org/W7202127834","https://openalex.org/W7167600169","https://openalex.org/W2071884465","https://openalex.org/W7095892187","https://openalex.org/W3109956889","https://openalex.org/W6983561810","https://openalex.org/W2064505993"],"abstract_inverted_index":{"Polymer":[0],"systems":[1],"prepared":[2],"far":[3,208],"from":[4,98,209,223],"equilibrium":[5,55],"often":[6],"retain":[7],"long-lived":[8],"memory":[9,37,148,218],"of":[10,34,53,93,104,106,167,226],"their":[11,21,205],"processing":[12],"history,":[13],"manifested":[14],"experimentally":[15,164],"as":[16,30,89,119],"molecular":[17,114],"recoiling":[18,115],"stresses":[19],"and":[20,58,109,162,188,199,219],"anomalous":[22],"relaxation":[23,46,125,168,196,221],"behavior.":[24],"Relaxation":[25],"may":[26],"therefore":[27],"be":[28,87],"viewed":[29],"the":[31,51,90,102,110,131,163,224],"gradual":[32],"erasure":[33],"stored":[35,230],"nonequilibrium":[36,107,122,232,239],"(forgetting).":[38],"Experiments":[39],"on":[40,238],"spin-coated":[41],"polymer":[42,56,128,171,217,240],"thin":[43],"films":[44],"reveal":[45],"behavior":[47],"that":[48,83,192,216],"lies":[49],"beyond":[50],"scope":[52],"conventional":[54],"dynamics":[57,105,133],"continuum":[59],"viscoelastic":[60],"descriptions,":[61],"which":[62],"only":[63],"partially":[64],"explain":[65],"it.":[66],"Yet":[67],"a":[68,120,140,146,186],"unifying":[69],"statistical-mechanical":[70],"framework":[71,191,214],"for":[72,155],"these":[73],"observations":[74],"has":[75],"remained":[76],"elusive.":[77],"In":[78],"this":[79,135,213],"Perspective,":[80],"I":[81],"argue":[82],"such":[84],"phenomena":[85],"can":[86],"understood":[88],"non-Markovian":[91],"regression":[92,100,225],"constrained":[94,227],"conformational":[95,228],"entropy.":[96],"Pivoting":[97],"Onsager\u2019s":[99],"hypothesis,":[101],"theory":[103],"variables,":[108],"Mori\u2013Zwanzig":[111],"projection-operator":[112],"formalism,":[113],"stress":[116,157,195],"is":[117,176],"identified":[118],"slow":[121,220],"variable":[123,136],"governing":[124],"in":[126,197],"nonequilibrated":[127],"systems.":[129],"Projecting":[130],"microscopic":[132,181],"onto":[134],"leads":[137],"naturally":[138],"to":[139,178,184,242],"stress-projected":[141],"generalized":[142],"Langevin":[143],"equation":[144],"with":[145,170,234],"history-dependent":[147,194,245],"kernel.":[149],"This":[150],"minimal":[151],"coarse-grained":[152],"description":[153],"accounts":[154],"stretched-exponential":[156],"relaxation,":[158],"Arrhenius":[159],"temperature":[160],"dependence,":[161],"observed":[165],"scaling":[166],"times":[169],"chain":[172],"length.":[173],"The":[174],"aim":[175],"not":[177],"introduce":[179],"new":[180],"models,":[182],"but":[183],"provide":[185],"simple":[187],"general":[189],"statistical-mechanics":[190],"rationalizes":[193],"polymers":[198,202],"clarifies":[200],"how":[201],"gradually":[203],"forget":[204],"preparation":[206],"history":[207],"equilibrium.":[210],"More":[211],"broadly,":[212],"suggests":[215],"arise":[222],"entropy":[229],"during":[231],"preparation,":[233],"topological":[235],"constraints":[236],"acting":[237],"ensembles":[241],"generate":[243],"persistent,":[244],"mechanical":[246],"responses.":[247]},"counts_by_year":[],"updated_date":"2026-11-09T13:22:03.289127","created_date":"2026-10-14T00:00:00"}