{"authors":[{"id":"orcid_______::1cb0b50be72e990935b803a2c2ce0934","fullName":"Stephanie Gonzalez-Migoni","name":"Stephanie","surname":"Gonzalez-Migoni","rank":1,"pid":{"id":{"scheme":"orcid","value":"0009-0002-3013-0853"},"provenance":null}},{"id":"orcid_______::8b1c9fd277f828c2e1982713478613d0","fullName":"Thomas L. C. Jansen","name":"Thomas L. C.","surname":"Jansen","rank":2,"pid":{"id":{"scheme":"orcid","value":"0000-0001-6066-6080"},"provenance":null}}],"openAccessColor":null,"publiclyFunded":false,"eoscIfGuidelines":null,"type":"publication","language":{"code":"eng","label":"English"},"countries":[{"code":"NL","label":"Netherlands","provenance":null}],"subjects":[{"subject":{"scheme":"FOS","value":"0103 physical sciences"},"provenance":null},{"subject":{"scheme":"FOS","value":"01 natural sciences"},"provenance":null}],"mainTitle":"Fluorescence-detected two-dimensional electronic spectroscopy: A coarse-grained simulation approach","subTitle":null,"descriptions":["<jats:p>Fluorescence-detected two-dimensional electronic spectroscopy (F-2DES) offers superior sensitivity compared to the traditional coherent two-dimensional electronic spectroscopy (2DES) technique. However, theoretical modeling remains essential to interpret F-2DES spectra, especially for multi-chromophoric systems. While widely used to study excitation energy transfer in molecular assemblies, even conventional 2DES faces computational challenges for large systems. To address these challenges, we extend a recently developed coarse-grained method for 2DES to simulate F-2DES and account for signatures of exciton–exciton annihilation events that affect cross-peak intensities in F-2DES. We then apply this approach to the light-harvesting II complex of purple bacteria, a well-studied benchmark system, and we find that F-2DES simulations reproduce experimental cross-peaks at zero and early waiting times. Moreover, disabling exciton–exciton annihilation recovers results identical to standard 2DES simulations, confirming that the observed cross-peaks arise from annihilation events, as hypothesized earlier. The implemented method opens the door for future exploration of waiting-time dynamics and extends the possibility of predicting F-2DES spectra to extensive photosynthetic systems.</jats:p>"],"publicationDate":"2026-02-09","publisher":"AIP Publishing","embargoEndDate":null,"sources":["Crossref"],"formats":null,"contributors":null,"coverages":null,"bestAccessRight":{"code":"c_abf2","label":"OPEN","scheme":"http://vocabularies.coar-repositories.org/documentation/access_rights/"},"container":{"name":"The Journal of Chemical 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