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Updated: Jun 22, 2026
06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Semiclassical theory for decay and fragmentation processes in chaotic quantum systems
Martha Gutiérrez1, Daniel Waltner, Jack Kuipers
1Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, Germany.
Summary
We developed a semiclassical method to precisely calculate quantum corrections in chaotic systems. This approach accurately models quantum decay and photofragmentation, enhancing our understanding of complex quantum phenomena.
Area of Science:
- Quantum mechanics
- Chaos theory
- Spectroscopy
Background:
- Open chaotic systems exhibit complex quantum decay and photofragmentation.
- Understanding quantum corrections to classical dynamics is crucial.
Purpose of the Study:
- To devise a semiclassical approach for calculating quantum corrections in open chaotic systems.
- To analyze quantum decay, photofragmentation, photodissociation, and photoionization phenomena.
Main Methods:
- Developed a high-order semiclassical expansion in inverse Heisenberg time.
- Applied the method to systems with and without time-reversal symmetry, including the symplectic case.
- Extended calculations to nonlocalized initial states.
Main Results:
- Successfully computed quantum corrections to classical decay with high accuracy.
- Analyzed photodissociation and photoionization cross-section correlations.
- Investigated the dependence of correlations on the Ehrenfest time.
Conclusions:
- The devised semiclassical approach consistently calculates quantum corrections in open chaotic systems.
- The method provides a powerful tool for studying quantum phenomena in complex systems.
- Results offer insights into the semiclassical behavior of quantum decay and fragmentation processes.
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