Semiclassical theory for decay and fragmentation processes in chaotic quantum systems

Gutierrez, Martha and Waltner, Daniel and Kuipers, Jack and Richter, Klaus (2009) Semiclassical theory for decay and fragmentation processes in chaotic quantum systems. PHYSICAL REVIEW E, 79 (4): 046212. ISSN 1539-3755,

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Abstract

We consider quantum decay and photofragmentation processes in open chaotic systems in the semiclassical limit. We devise a semiclassical approach which allows us to consistently calculate quantum corrections to the classical decay to high order in an expansion in the inverse Heisenberg time. We present results for systems with and without time-reversal symmetry, as well as for the symplectic case, and extend recent results to nonlocalized initial states. We further analyze related photodissociation and photoionization phenomena and semiclassically compute cross-section correlations, including their Ehrenfest-time dependence.

Item Type: Article
Uncontrolled Keywords: NUCLEAR CROSS SECTIONS; SPECTRAL FORM-FACTOR; WEAK ANTILOCALIZATION; POTENTIAL SCATTERING; MESOSCOPIC SYSTEMS; HYPERBOLIC SYSTEMS; SPIN RELAXATION; CLASSICAL CHAOS; FLUCTUATIONS; DYNAMICS; chaos; photodissociation; photoionisation; quantum theory
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter
Depositing User: Dr. Gernot Deinzer
Date Deposited: 21 Sep 2020 05:17
Last Modified: 21 Sep 2020 05:17
URI: https://pred.uni-regensburg.de/id/eprint/29234

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