Light-induced conical intersections

• Verfasst von: Halász, Gábor J. [VerfasserIn]
• Verfasst von: Cederbaum, Lorenz S. [VerfasserIn]
• Titel: Light-induced conical intersections
• Titelzusatz: topological phase, wave packet dynamics, and molecular alignment
• Verf.angabe: Gábor J. Halász, Milan Šindelka, Nimrod Moiseyev, Lorenz S. Cederbaum, and Ágnes Vibók
• Jahr des Originals: 2011
• Umfang: 8 S.
• Fussnoten: Gesehen am 17.05.2018
• Titel Quelle: Enthalten in: The journal of physical chemistry <Washington, DC> / A
• Jahr Quelle: 2012
• Band/Heft Quelle: 116(2012), 11, S. 2636-2643
• ISSN Quelle: 1520-5215
• DOI: doi:10.1021/jp206860p
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1575260379

Abstract

In previous publications (J. Phys. B: At., Mol. Opt. Phys. 2008, 41, 221001; J. Phys. B: At., Mol. Opt. Phys. 2011, 44, 045603) a novel and physically interesting phenomenon was found in the field of lightÀmatter interactions. It was shown theoretically that exposing a molecule to a laser field can give rise to the appearance of so-called light-induced conical intersections (LICIs). The existence of such LICIs may change significantly the field free physical properties of a molecular system. In this article we review the LICIs in diatomics and provide a new insight to the LICI phenomenon. The sodium dimer is chosen as an explicit sample system. We calculated the Berry phase for a contour that surrounds the point of LICI and found it to be π, which is the same value as for the case of a “natural” CI in triatomic or larger molecules. We also present results to stress the impact of LICIs on molecular wave packet dynamics and molecular alignment in different electronicstates.