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dc.contributor.authorZalam, Alaa Abo
dc.contributor.authorDimitrijević, Milan S.
dc.contributor.authorSrećković, Vladimir A.
dc.contributor.authorBezuglov, Nikolai N.
dc.contributor.authorMiculis, Kaspars
dc.contributor.authorKlyucharev, Andrey N.
dc.contributor.authorEkers, Aigars
dc.date.accessioned2020-12-07T05:57:14Z
dc.date.available2020-12-07T05:57:14Z
dc.date.submitted2020-09-16
dc.identifier.citationZalam, A. A., Dimitrijević, M. S., Srećković, V. A., Bezuglov, N. N., Miculis, K., Klyucharev, A. N., & Ekers, A. (2020). Penningionization processes involving cold Rydberg alkali metal atoms. The European Physical Journal D, 74(12). doi:10.1140/epjd/e2020-10507-7
dc.identifier.issn1434-6079
dc.identifier.issn1434-6060
dc.identifier.doi10.1140/epjd/e2020-10507-7
dc.identifier.urihttp://hdl.handle.net/10754/666286
dc.description.abstractAbstract: This paper investigates the Penning ionization (PI) processes in cold gas media of alkali atoms. The PI autoionization widths of atomic pairs show a drastic dependence (by orders of magnitude) on the orbital quantum numbers of Rydberg atoms involved in a long-range dipole-dipole interaction. The nontrivial dependence of the PI efficiency on the size of colliding particles was considered, with a particular accent to the applications in the research of cold matter created in the experiments with magneto-optical traps. We have analytically described the optimal, highly asymmetric configurations of atomic Rydberg pairs, which lead to an explosive intensification (by several orders of magnitude) of a free-electron escaping due to PI. The excited states of atoms in the optimal pairs turn out to have a strong difference in atomic shell sizes. The optimal pairs’ properties may be favorable for the generation of primary (seeding) charged particles when a cold Rydberg medium evolves into a cold plasma. Within the framework of the semiclassical approach, we have obtained universal analytical formulas containing two adjustable parameters and present here their values in tabulated form, which allows estimating the PI rate constants for various pairs of alkali metal atoms. Graphical abstract: [Figure not available: see fulltext.]
dc.publisherSpringer Nature
dc.relation.urlhttp://link.springer.com/10.1140/epjd/e2020-10507-7
dc.rightsArchived with thanks to European Physical Journal D
dc.titlePenningionization processes involving cold Rydberg alkali metal atoms
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.identifier.journalEuropean Physical Journal D
dc.rights.embargodate2021-12-07
dc.eprint.versionPost-print
dc.contributor.institutionSaint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg, 199034, Russia
dc.contributor.institutionPhysics Department, Faculty of Science, Menoufia University, Menoufia, Egypt
dc.contributor.institutionAstronomical Observatory, Volgina 7, 11060, Belgrade 74, Serbia
dc.contributor.institutionSorbonne Université, Observatoire de Paris, Université PSL, CNRS, LERMA, 92190, Meudon, France
dc.contributor.institutionInstitute of Physics Belgrade, University of Belgrade, P.O. Box 57, 11001, Belgrade, Serbia
dc.contributor.institutionUniversity of Latvia Institute of Atomic Physics and Spectroscopy, 1586, Riga, Latvia
dc.contributor.institutionRzhanov Institute of Semiconductor Physics SB RAS, 630090, Novosibirsk, Russia
dc.identifier.volume74
dc.identifier.issue12
kaust.personEkers, Aigars
dc.date.accepted2020-10-01
dc.identifier.eid2-s2.0-85096972161


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