{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T00:32:20Z","timestamp":1788309140746,"version":"build-2803163510"},"reference-count":67,"publisher":"AIP Publishing","issue":"12","funder":[{"name":"EU-Funded Hungarian Grant EFOP","award":["EFOP-3.6.2-16-2017-00005"],"award-info":[{"award-number":["EFOP-3.6.2-16-2017-00005"]}]},{"DOI":"10.13039\/501100012550","name":"Nemzeti Kutat\u00e1si, Fejleszt\u00e9si \u00e9s Innovaci\u00f3s Alap","doi-asserted-by":"publisher","award":["K128396"],"award-info":[{"award-number":["K128396"]}],"id":[{"id":"10.13039\/501100012550","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2021,3,28]]},"abstract":"<jats:p>Nonadiabatic coupling is absent between the electronic ground X and first excited (singlet) A states of formaldehyde. As laser fields can induce conical intersections between these two electronic states, formaldehyde is particularly suitable for investigating light-induced nonadiabaticity in a polyatomic molecule. The present work reports on the spectrum induced by light\u2014the so-called field-dressed spectrum\u2014probed by a weak laser pulse. A full-dimensional ab initio approach in the framework of Floquet-state representation is applied. The low-energy spectrum, which without the dressing field would correspond to an infrared vibrational spectrum in the X-state, and the high-energy spectrum, which without the dressing field would correspond to the X \u2192 A spectrum, are computed and analyzed. The spectra are shown to be highly sensitive to the frequency of the dressing light allowing one to isolate different nonadiabatic phenomena.<\/jats:p>","DOI":"10.1063\/5.0045069","type":"journal-article","created":{"date-parts":[[2021,3,24]],"date-time":"2021-03-24T09:55:33Z","timestamp":1616579733000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":11,"title":["Signatures of light-induced nonadiabaticity in the field-dressed vibronic spectrum of formaldehyde"],"prefix":"10.1063","volume":"154","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9746-1548","authenticated-orcid":false,"given":"Csaba","family":"F\u00e1bri","sequence":"first","affiliation":[{"name":"Laboratory of Molecular Structure and Dynamics, Institute of Chemistry, E\u00f6tv\u00f6s Lor\u00e1nd University 1 , P\u00e1zm\u00e1ny P\u00e9ter s\u00e9t\u00e1ny 1\/A, H-1117 Budapest, Hungary"},{"name":"MTA-ELTE Complex Chemical Systems Research Group 2 , P.O. Box 32, H-1518 Budapest 112, Hungary"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7010-4302","authenticated-orcid":false,"given":"G\u00e1bor J.","family":"Hal\u00e1sz","sequence":"additional","affiliation":[{"name":"Department of Information Technology, University of Debrecen 3 , P.O. 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