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dc.contributor.authorChu, Shih-I
dc.contributor.authorHo, Tak-San
dc.contributor.authorLaughlin, Cecil
dc.date.accessioned2014-11-21T18:51:26Z
dc.date.available2014-11-21T18:51:26Z
dc.date.issued1984-03-01
dc.identifier.citationChu, Shih-I., Ho, TakSan., Laughlin, Cecil. "Laser assisted charge transfer reactions in slow ion–atom collisions: Coupled dressed quasimolecularstates approach." The Journal of Chemical Physics 81, 788 (1984); http://dx.doi.org/10.1063/1.447712.
dc.identifier.urihttp://hdl.handle.net/1808/15841
dc.descriptionThis is the published version, also available here: http://dx.doi.org/10.1063/1.447712.
dc.description.abstractSemiclassical coupled dressed quasimolecular states (DQMS) approaches are presented for the nonperturbative treatment of charge transferreactions at low collision velocities and high laser intensities. The DQMS are first obtained via the Floquet theory. The laser assisted collision process can then be treated as the electronic transitions among the DQMS driven by the nuclear motion only. The expansion of the total electronic wave function in a truncated DQMS basis results in a set of coupled a d i a b a t i c equations. The adiabatic DQMS and their associated quasienergies (depending parametrically upon the internuclear separation R) exhibit regions of avoided crossings, where the electronic transition probabilities are large due to strong radial couplings induced by the nuclear movement. By further transforming the a d i a b a t i c DQMS into an appropriate d i a b a t i c DQMS representation, defined via the vanishing of the aforementioned radial couplings, we obtain a new set of coupled d i a b a t i c equations which offer computational advantage. The method is illustrated by a case study of the laser assisted charge exchange process He+ ++H(1s)+ℏω→He+(n=2)+H+, in a two‐state approximation, for the velocity range from 1.5×105 to 2×107 cm/s and for the laser intensity in the range of 0.4 to 4.0 TW/cm2. Results of exact coupled diabatic DQMS calculations are presented along with several approximation calculations, using first order perturbation theory, the Magnus approximation, and the average cross section.
dc.publisherAIP Publishing
dc.subjectCharge transfer
dc.subjectCollision induced chemical reactions
dc.subjectSemiclassical theories
dc.subjectTransfer reactions
dc.subjectCharge exchange reactions
dc.titleLaser assisted charge transfer reactions in slow ion–atom collisions: Coupled dressed quasimolecular‐states approach
dc.typeArticle
kusw.kuauthorChu, Shih-I
kusw.kudepartmentChemistry
kusw.oastatusna
dc.identifier.doi10.1063/1.447712
kusw.oaversionScholarly/refereed, publisher version
kusw.oapolicyThis item does not meet KU Open Access policy criteria.
dc.rights.accessrightsopenAccess


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