Light-induced conical intersections

Topological phase, wave packet dynamics, and molecular alignment

G. Halász, Milan Šindelka, Nimrod Moiseyev, Lorenz S. Cederbaum, A. Vibók

Research output: Contribution to journalArticle

46 Citations (Scopus)

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 light-matter 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 electronic states.

Original languageEnglish
Pages (from-to)2636-2643
Number of pages8
JournalJournal of Physical Chemistry A
Volume116
Issue number11
DOIs
Publication statusPublished - Mar 22 2012

Fingerprint

Wave packets
Molecular orientation
wave packets
intersections
alignment
triatomic molecules
Molecules
Electronic states
Dimers
molecules
Physical properties
physical properties
Sodium
dimers
sodium
Lasers
electronics
lasers

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Light-induced conical intersections : Topological phase, wave packet dynamics, and molecular alignment. / Halász, G.; Šindelka, Milan; Moiseyev, Nimrod; Cederbaum, Lorenz S.; Vibók, A.

In: Journal of Physical Chemistry A, Vol. 116, No. 11, 22.03.2012, p. 2636-2643.

Research output: Contribution to journalArticle

Halász, G. ; Šindelka, Milan ; Moiseyev, Nimrod ; Cederbaum, Lorenz S. ; Vibók, A. / Light-induced conical intersections : Topological phase, wave packet dynamics, and molecular alignment. In: Journal of Physical Chemistry A. 2012 ; Vol. 116, No. 11. pp. 2636-2643.
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