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Crossover from the Ultracold to the Quasiclassical Regime in State-Selected Photodissociation

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dc.abstract.enProcesses that break molecular bonds are typically observed with molecules occupying a mixture of quantum states and successfully described with quasiclassical models, while a few studies have explored the distinctly quantum mechanical low-energy regime. Here, we use photodissociation of diatomic strontium molecules to demonstrate the crossover from the ultracold, quantum regime where photofragment angular distributions strongly depend on the kinetic energy to the quasiclassical regime. Using time-of-flight imaging for photodissociation channels with millikelvin reaction barriers, we explore photofragment energies in the 0.1–300 mK range experimentally and up to 3 K theoretically, and discuss the energy scale at which the crossover occurs. We find that the effects of quantum statistics can persist to high photodissociation energies.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorMoszyński, Robert
dc.contributor.authorMcDonald, M.
dc.contributor.authorMcGuyer, B. H.
dc.contributor.authorMajewska, Iwona
dc.contributor.authorZelevinsky, T.
dc.contributor.authorLee, C.-H.
dc.contributor.authorKondov, S. S.
dc.date.accessioned2024-01-24T20:55:24Z
dc.date.available2024-01-24T20:55:24Z
dc.date.issued2018
dc.description.financeNie dotyczy
dc.description.number14
dc.description.volume121
dc.identifier.doi10.1103/PHYSREVLETT.121.143401
dc.identifier.issn0031-9007
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/103966
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofPhysical Review Letters
dc.relation.pages143401
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleCrossover from the Ultracold to the Quasiclassical Regime in State-Selected Photodissociation
dc.typeJournalArticle
dspace.entity.typePublication