{"id":"https://openalex.org/W7151450257","doi":"https://doi.org/10.48550/arxiv.2604.03885","title":"PhaseFlow4D: Physically Constrained 4D Beam Reconstruction via Feedback-Guided Latent Diffusion","display_name":"PhaseFlow4D: Physically Constrained 4D Beam Reconstruction via Feedback-Guided Latent Diffusion","publication_year":2026,"publication_date":"2026-04-04","ids":{"openalex":"https://openalex.org/W7151450257","doi":"https://doi.org/10.48550/arxiv.2604.03885"},"language":null,"primary_location":{"id":"doi:10.48550/arxiv.2604.03885","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2604.03885","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"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"},"type":"preprint","indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doi.org/10.48550/arxiv.2604.03885","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5133075697","display_name":"Alexander Scheinker","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Scheinker, Alexander","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065507785","display_name":"Alexander Plastun","orcid":"https://orcid.org/0000-0002-5351-1969"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Plastun, Alexander","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5133107584","display_name":"Peter Ostroumov","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ostroumov, Peter","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"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/T11323","display_name":"Gamma-ray bursts and supernovae","score":0.14820000529289246,"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/T11323","display_name":"Gamma-ray bursts and supernovae","score":0.14820000529289246,"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/T10093","display_name":"Nuclear physics research studies","score":0.12839999794960022,"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/T10384","display_name":"Laser-Plasma Interactions and Diagnostics","score":0.12680000066757202,"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/phase-space","display_name":"Phase space","score":0.5795999765396118},{"id":"https://openalex.org/keywords/generative-model","display_name":"Generative model","score":0.4878000020980835},{"id":"https://openalex.org/keywords/tracking","display_name":"Tracking (education)","score":0.4708000123500824},{"id":"https://openalex.org/keywords/diffusion","display_name":"Diffusion","score":0.4668999910354614},{"id":"https://openalex.org/keywords/phase","display_name":"Phase (matter)","score":0.41769999265670776},{"id":"https://openalex.org/keywords/distribution","display_name":"Distribution (mathematics)","score":0.3774999976158142},{"id":"https://openalex.org/keywords/space","display_name":"Space (punctuation)","score":0.37619999051094055},{"id":"https://openalex.org/keywords/beam","display_name":"Beam (structure)","score":0.3431999981403351}],"concepts":[{"id":"https://openalex.org/C151342819","wikidata":"https://www.wikidata.org/wiki/Q62542","display_name":"Phase space","level":2,"score":0.5795999765396118},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.49230000376701355},{"id":"https://openalex.org/C167966045","wikidata":"https://www.wikidata.org/wiki/Q5532625","display_name":"Generative model","level":3,"score":0.4878000020980835},{"id":"https://openalex.org/C2775936607","wikidata":"https://www.wikidata.org/wiki/Q466845","display_name":"Tracking (education)","level":2,"score":0.4708000123500824},{"id":"https://openalex.org/C69357855","wikidata":"https://www.wikidata.org/wiki/Q163214","display_name":"Diffusion","level":2,"score":0.4668999910354614},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4611999988555908},{"id":"https://openalex.org/C44280652","wikidata":"https://www.wikidata.org/wiki/Q104837","display_name":"Phase (matter)","level":2,"score":0.41769999265670776},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.4099000096321106},{"id":"https://openalex.org/C121864883","wikidata":"https://www.wikidata.org/wiki/Q677916","display_name":"Statistical physics","level":1,"score":0.4007999897003174},{"id":"https://openalex.org/C110121322","wikidata":"https://www.wikidata.org/wiki/Q865811","display_name":"Distribution (mathematics)","level":2,"score":0.3774999976158142},{"id":"https://openalex.org/C2778572836","wikidata":"https://www.wikidata.org/wiki/Q380933","display_name":"Space (punctuation)","level":2,"score":0.37619999051094055},{"id":"https://openalex.org/C168834538","wikidata":"https://www.wikidata.org/wiki/Q3705329","display_name":"Beam (structure)","level":2,"score":0.3431999981403351},{"id":"https://openalex.org/C55128770","wikidata":"https://www.wikidata.org/wiki/Q5275440","display_name":"Diffusion map","level":4,"score":0.34290000796318054},{"id":"https://openalex.org/C55439883","wikidata":"https://www.wikidata.org/wiki/Q360812","display_name":"Correctness","level":2,"score":0.3395000100135803},{"id":"https://openalex.org/C2778112365","wikidata":"https://www.wikidata.org/wiki/Q3511065","display_name":"Sequence (biology)","level":2,"score":0.3325999975204468},{"id":"https://openalex.org/C2776036281","wikidata":"https://www.wikidata.org/wiki/Q48769818","display_name":"Constraint (computer-aided design)","level":2,"score":0.3310000002384186},{"id":"https://openalex.org/C149441793","wikidata":"https://www.wikidata.org/wiki/Q200726","display_name":"Probability distribution","level":2,"score":0.3156999945640564},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3018999993801117},{"id":"https://openalex.org/C141379421","wikidata":"https://www.wikidata.org/wiki/Q6094427","display_name":"Iterative reconstruction","level":2,"score":0.29330000281333923},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.2890999913215637},{"id":"https://openalex.org/C13662910","wikidata":"https://www.wikidata.org/wiki/Q193139","display_name":"Trajectory","level":2,"score":0.26840001344680786},{"id":"https://openalex.org/C19499675","wikidata":"https://www.wikidata.org/wiki/Q232207","display_name":"Monte Carlo method","level":2,"score":0.26249998807907104},{"id":"https://openalex.org/C197055811","wikidata":"https://www.wikidata.org/wiki/Q207522","display_name":"Probability density function","level":2,"score":0.2581000030040741}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.48550/arxiv.2604.03885","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2604.03885","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"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":null,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"doi:10.48550/arxiv.2604.03885","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2604.03885","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"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"},"sustainable_development_goals":[{"display_name":"Sustainable cities and communities","score":0.436593234539032,"id":"https://metadata.un.org/sdg/11"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"We":[0,63,161],"address":[1],"the":[2,28,75,101,146,150,170],"problem":[3],"of":[4,14,35,43,149,166],"recovering":[5],"a":[6,11,66,95,131,185],"time-varying":[7,156,202],"4D":[8,29,77,96,103,192],"distribution":[9,46,199],"from":[10,22,80,107],"sparse":[12,23],"sequence":[13],"2D":[15,59,82,109,117],"projections":[16,60,110],"-":[17,128,205],"analogous":[18],"to":[19,27,154],"novel-view":[20],"synthesis":[21],"cameras,":[24],"but":[25,134],"applied":[26],"transverse":[30],"phase":[31,78,104],"space":[32,79,105],"density":[33],"$\u03c1(x,p_x,y,p_y)$":[34],"charged":[36],"particle":[37,52],"beams.":[38],"Direct":[39],"single":[40],"shot":[41],"measurement":[42],"this":[44],"high-dimensional":[45],"is":[47,94],"physically":[48],"impossible":[49],"in":[50],"real":[51],"accelerator":[53],"systems;":[54],"only":[55],"limited":[56],"1D":[57],"or":[58],"are":[61,111],"accessible.":[62],"propose":[64],"PhaseFlow4D,":[65],"feedback-guided":[67],"latent":[68,151],"diffusion":[69,152],"model":[70,153],"that":[71,207],"reconstructs":[72],"and":[73,114],"tracks":[74],"full":[76,102,178],"incomplete":[81,212],"observations":[83,213],"alone,":[84],"with":[85],"built-in":[86],"hard":[87],"physics":[88,179],"constraints.":[89],"Our":[90],"core":[91],"technical":[92],"contribution":[93],"VAE":[97],"whose":[98],"decoder":[99],"generates":[100],"tensor,":[106],"which":[108],"analytically":[112],"computed":[113],"compared":[115],"against":[116],"beam":[118],"measurements.":[119],"This":[120],"projection-consistency":[121],"constraint":[122],"guarantees":[123],"physical":[124],"correctness":[125],"by":[126],"construction":[127],"not":[129],"as":[130,135],"soft":[132],"penalty,":[133],"an":[136],"architectural":[137],"prior.":[138],"An":[139],"adaptive":[140],"feedback":[141],"loop":[142],"then":[143],"continuously":[144],"tunes":[145],"conditioning":[147],"vector":[148],"track":[155],"distributions":[157],"online":[158],"without":[159],"retraining.":[160],"validate":[162],"on":[163,184],"multi-particle":[164],"simulations":[165,180],"heavy-ion":[167],"beams":[168],"at":[169],"Facility":[171],"for":[172],"Rare":[173],"Isotope":[174],"Beams":[175],"(FRIB),":[176],"where":[177],"require":[181],"$\\sim$6":[182],"hours":[183],"100-core":[186],"HPC":[187],"system.":[188],"PhaseFlow4D":[189],"achieves":[190],"accurate":[191],"reconstructions":[193],"11000$\\times$":[194],"faster":[195],"while":[196],"faithfully":[197],"tracking":[198],"shifts":[200],"under":[201,211],"source":[203],"conditions":[204],"demonstrating":[206],"principled":[208],"generative":[209],"reconstruction":[210],"transfers":[214],"robustly":[215],"beyond":[216],"visual":[217],"domains.":[218]},"counts_by_year":[],"updated_date":"2026-07-01T06:00:48.157686","created_date":"2026-04-08T00:00:00"}