{"id":"https://openalex.org/W7203714449","doi":"https://doi.org/10.48550/arxiv.2608.16219","title":"Non-Equilibrium Instantaneous Approximation and Dipole Forbidden d-d Transitions","display_name":"Non-Equilibrium Instantaneous Approximation and Dipole Forbidden d-d Transitions","publication_year":2026,"publication_date":"2026-08-17","ids":{"openalex":"https://openalex.org/W7203714449","doi":"https://doi.org/10.48550/arxiv.2608.16219"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2608.16219","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2608.16219","pdf_url":"https://arxiv.org/pdf/2608.16219","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/2608.16219","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5012273745","display_name":"Marco Marino","orcid":"https://orcid.org/0000-0001-5310-6966","observed_orcids":["https://orcid.org/0000-0001-5310-6966"]},"institutions":[{"id":"https://openalex.org/I200332995","display_name":"TU Dortmund University","ror":"https://ror.org/01k97gp34","country_code":"DE","type":"education","lineage":["https://openalex.org/I200332995"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Marino, Marco","raw_affiliation_strings":["TU Dortmund University , Otto-Hahn-Stra\u00dfe 4 , 44227 Dortmund , Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"TU Dortmund University , Otto-Hahn-Stra\u00dfe 4 , 44227 Dortmund , Germany","institution_ids":["https://openalex.org/I200332995"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5090891806","display_name":"Lasse Sternemann","orcid":"https://orcid.org/0009-0001-8704-4940","observed_orcids":["https://orcid.org/0009-0001-8704-4940"]},"institutions":[{"id":"https://openalex.org/I200332995","display_name":"TU Dortmund University","ror":"https://ror.org/01k97gp34","country_code":"DE","type":"education","lineage":["https://openalex.org/I200332995"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Sternemann, Lasse","raw_affiliation_strings":["TU Dortmund University , Otto-Hahn-Stra\u00dfe 4 , 44227 Dortmund , Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"TU Dortmund University , Otto-Hahn-Stra\u00dfe 4 , 44227 Dortmund , Germany","institution_ids":["https://openalex.org/I200332995"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076282922","display_name":"Mirko Cinchetti","orcid":"https://orcid.org/0000-0003-0735-8921","observed_orcids":["https://orcid.org/0000-0003-0735-8921"]},"institutions":[{"id":"https://openalex.org/I200332995","display_name":"TU Dortmund University","ror":"https://ror.org/01k97gp34","country_code":"DE","type":"education","lineage":["https://openalex.org/I200332995"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Cinchetti, Mirko","raw_affiliation_strings":["TU Dortmund University , Otto-Hahn-Stra\u00dfe 4 , 44227 Dortmund , Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"TU Dortmund University , Otto-Hahn-Stra\u00dfe 4 , 44227 Dortmund , Germany","institution_ids":["https://openalex.org/I200332995"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5078417425","display_name":"Frithjof B. Anders","orcid":"https://orcid.org/0000-0002-9608-0943","observed_orcids":["https://orcid.org/0000-0002-9608-0943"]},"institutions":[{"id":"https://openalex.org/I200332995","display_name":"TU Dortmund University","ror":"https://ror.org/01k97gp34","country_code":"DE","type":"education","lineage":["https://openalex.org/I200332995"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Anders, Frithjof B.","raw_affiliation_strings":["TU Dortmund University , Otto-Hahn-Stra\u00dfe 4 , 44227 Dortmund , Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"TU Dortmund University , Otto-Hahn-Stra\u00dfe 4 , 44227 Dortmund , Germany","institution_ids":["https://openalex.org/I200332995"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I200332995"],"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/T10037","display_name":"Physics of Superconductivity and Magnetism","score":0.5121999979019165,"subfield":{"id":"https://openalex.org/subfields/3104","display_name":"Condensed Matter 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/T10037","display_name":"Physics of Superconductivity and Magnetism","score":0.5121999979019165,"subfield":{"id":"https://openalex.org/subfields/3104","display_name":"Condensed Matter 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/T10566","display_name":"Laser-Matter Interactions and Applications","score":0.1550000011920929,"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/T11682","display_name":"Advanced Condensed Matter Physics","score":0.1412000060081482,"subfield":{"id":"https://openalex.org/subfields/3104","display_name":"Condensed Matter 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/instantaneous-approximation","display_name":"instantaneous approximation","score":0.847000002861023},{"id":"https://openalex.org/keywords/nonequilibrium-green-s-function","display_name":"non-equilibrium Green's function","score":0.8230000138282776},{"id":"https://openalex.org/keywords/time-resolved-photoemission-spectroscopy","display_name":"time-resolved photoemission","score":0.734000027179718},{"id":"https://openalex.org/keywords/correlated-electron-systems","display_name":"correlated electrons","score":0.6620000004768372},{"id":"https://openalex.org/keywords/hubbard-i-approximation","display_name":"Hubbard-I approximation","score":0.7519999742507935},{"id":"https://openalex.org/keywords/dynamical-mean-field-theory","display_name":"dynamical mean-field theory","score":0.8510000109672546},{"id":"https://openalex.org/keywords/p-d-hybridization","display_name":"p-d hybridization","score":0.781000018119812},{"id":"https://openalex.org/keywords/vertex-corrections","display_name":"vertex corrections","score":0.8259999752044678},{"id":"https://openalex.org/keywords/feps3","display_name":"FePS3","score":0.9359999895095825},{"id":"https://openalex.org/keywords/antiferromagnetism","display_name":"antiferromagnetism","score":0.8080000281333923},{"id":"https://openalex.org/keywords/tight-binding-model","display_name":"tight-binding model","score":0.6690000295639038}],"concepts":[{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.5928999781608582},{"id":"https://openalex.org/C49874194","wikidata":"https://www.wikidata.org/wiki/Q5282045","display_name":"Discrete dipole approximation","level":3,"score":0.5094000101089478},{"id":"https://openalex.org/C83581075","wikidata":"https://www.wikidata.org/wiki/Q1361503","display_name":"Excitation","level":2,"score":0.47940000891685486},{"id":"https://openalex.org/C4839761","wikidata":"https://www.wikidata.org/wiki/Q212111","display_name":"Spectral line","level":2,"score":0.44350001215934753},{"id":"https://openalex.org/C2780732345","wikidata":"https://www.wikidata.org/wiki/Q5141360","display_name":"Coherent potential approximation","level":3,"score":0.44350001215934753},{"id":"https://openalex.org/C131584629","wikidata":"https://www.wikidata.org/wiki/Q4308705","display_name":"Coupling (piping)","level":2,"score":0.41839998960494995},{"id":"https://openalex.org/C80899671","wikidata":"https://www.wikidata.org/wiki/Q1304193","display_name":"Vertex (graph theory)","level":3,"score":0.39469999074935913},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.3912999927997589},{"id":"https://openalex.org/C173523689","wikidata":"https://www.wikidata.org/wiki/Q215589","display_name":"Dipole","level":2,"score":0.38600000739097595},{"id":"https://openalex.org/C121864883","wikidata":"https://www.wikidata.org/wiki/Q677916","display_name":"Statistical physics","level":1,"score":0.3813000023365021},{"id":"https://openalex.org/C2781204021","wikidata":"https://www.wikidata.org/wiki/Q6497091","display_name":"Lattice (music)","level":2,"score":0.36039999127388},{"id":"https://openalex.org/C157077121","wikidata":"https://www.wikidata.org/wiki/Q7624687","display_name":"Strongly correlated material","level":3,"score":0.34150001406669617},{"id":"https://openalex.org/C60718061","wikidata":"https://www.wikidata.org/wiki/Q1414747","display_name":"Momentum (technical analysis)","level":2,"score":0.3393000066280365},{"id":"https://openalex.org/C106074065","wikidata":"https://www.wikidata.org/wiki/Q1571298","display_name":"Hubbard model","level":3,"score":0.33660000562667847},{"id":"https://openalex.org/C14036430","wikidata":"https://www.wikidata.org/wiki/Q3736076","display_name":"Function (biology)","level":2,"score":0.32089999318122864},{"id":"https://openalex.org/C32891209","wikidata":"https://www.wikidata.org/wiki/Q483666","display_name":"Spectroscopy","level":2,"score":0.3203999996185303},{"id":"https://openalex.org/C155355069","wikidata":"https://www.wikidata.org/wiki/Q575224","display_name":"Antiferromagnetism","level":2,"score":0.31709998846054077},{"id":"https://openalex.org/C124712363","wikidata":"https://www.wikidata.org/wiki/Q188479","display_name":"Paramagnetism","level":2,"score":0.3151000142097473},{"id":"https://openalex.org/C86025842","wikidata":"https://www.wikidata.org/wiki/Q5358432","display_name":"Electronic structure","level":2,"score":0.3142000138759613},{"id":"https://openalex.org/C184779094","wikidata":"https://www.wikidata.org/wiki/Q26383","display_name":"Atomic physics","level":1,"score":0.2987000048160553},{"id":"https://openalex.org/C191486275","wikidata":"https://www.wikidata.org/wiki/Q210028","display_name":"Scattering","level":2,"score":0.2971999943256378},{"id":"https://openalex.org/C113603373","wikidata":"https://www.wikidata.org/wiki/Q2362761","display_name":"Wave function","level":2,"score":0.28679999709129333},{"id":"https://openalex.org/C26873012","wikidata":"https://www.wikidata.org/wiki/Q214781","display_name":"Condensed matter physics","level":1,"score":0.2630000114440918},{"id":"https://openalex.org/C51286037","wikidata":"https://www.wikidata.org/wiki/Q1139350","display_name":"Photoemission spectroscopy","level":3,"score":0.2572999894618988},{"id":"https://openalex.org/C30475298","wikidata":"https://www.wikidata.org/wiki/Q909554","display_name":"Computational physics","level":1,"score":0.2515999972820282}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:arXiv.org:2608.16219","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2608.16219","pdf_url":"https://arxiv.org/pdf/2608.16219","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.2608.16219","doi":"https://doi.org/10.48550/arxiv.2608.16219","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2608.16219","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:2608.16219","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2608.16219","pdf_url":"https://arxiv.org/pdf/2608.16219","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/G5156602668","display_name":null,"funder_award_id":"CI 157/11-1","funder_id":"https://openalex.org/F4320320879","funder_display_name":"Deutsche Forschungsgemeinschaft"}],"funders":[{"id":"https://openalex.org/F4320320879","display_name":"Deutsche Forschungsgemeinschaft","ror":"https://ror.org/018mejw64"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7203714449.pdf","grobid_xml":"https://content.openalex.org/works/W7203714449.grobid-xml"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W4407761490","https://openalex.org/W4391622125","https://openalex.org/W4409266024","https://openalex.org/W4410976667","https://openalex.org/W3202500275","https://openalex.org/W4392781787","https://openalex.org/W4404740817","https://openalex.org/W2054804219","https://openalex.org/W1895034055","https://openalex.org/W2995679875"],"abstract_inverted_index":{"Time-":[0],"and":[1,55,144,175],"angle-resolved":[2],"photoemission":[3,182],"spectroscopy":[4],"provides":[5],"direct":[6],"access":[7],"to":[8,129,142],"pump-induced":[9],"changes":[10],"in":[11,50,59,179],"the":[12,43,47,51,60,71,75,78,82,87,118,121,130,140,165,173],"electronic":[13],"structure":[14],"of":[15,46,81,136,172],"correlated":[16,36,84],"materials,":[17],"but":[18],"its":[19],"theoretical":[20],"description":[21],"generally":[22],"requires":[23],"computationally":[24],"demanding":[25],"two-time":[26],"non-equilibrium":[27],"calculations.":[28],"We":[29,95],"introduce":[30],"an":[31,98,125],"instantaneous":[32,119],"approximation":[33],"for":[34,101],"pump-driven":[35],"systems,":[37],"based":[38],"on":[39],"a":[40,65,109,134,148,156],"separation":[41],"between":[42],"rapid":[44],"decay":[45],"Green's":[48,89],"functions":[49],"relative":[52],"time":[53],"variable":[54],"their":[56],"slower":[57],"evolution":[58],"average":[61],"time.":[62],"Combined":[63],"with":[64,155],"one-shot":[66],"dynamical":[67],"mean-field":[68],"construction":[69],"at":[70],"Hubbard":[72],"I":[73],"level,":[74],"method":[76],"incorporates":[77],"driven":[79],"dynamics":[80],"local":[83],"shell":[85],"into":[86],"lattice":[88],"function":[90],"while":[91],"retaining":[92],"momentum":[93],"resolution.":[94],"also":[96],"derive":[97],"effective":[99],"coupling":[100],"nominally":[102],"dipole-forbidden":[103],"d-d":[104,177],"excitations.":[105],"It":[106],"arises":[107],"from":[108],"dipole-allowed":[110],"d-p":[111],"transition":[112],"followed":[113],"by":[114],"p-d":[115],"hybridization;":[116],"beyond":[117],"limit,":[120],"same":[122],"process":[123],"produces":[124],"energy-dependent":[126],"vertex":[127],"correction":[128],"optical":[131],"response.":[132],"As":[133],"proof":[135],"principle,":[137],"we":[138],"apply":[139],"framework":[141],"paramagnetic":[143],"antiferromagnetic":[145],"FePS3,":[146],"using":[147],"density-functional":[149],"theory":[150],"derived":[151],"tight-binding":[152],"model":[153],"together":[154],"supercell":[157],"unfolding":[158],"procedure.":[159],"The":[160],"calculated":[161],"momentum-resolved":[162],"spectra":[163],"reproduce":[164],"main":[166],"qualitative":[167],"features":[168],"observed":[169],"after":[170],"excitation":[171],"first":[174],"second":[176],"transitions":[178],"recent":[180],"time-resolved":[181],"experiments.":[183]},"counts_by_year":[],"updated_date":"2026-11-05T12:25:35.769452","created_date":"2026-08-19T00:00:00"}
