Semiclassical theory for decay and fragmentation processes in chaotic quantum systems.

Semiclassical theory for decay and fragmentation processes in chaotic quantum systems.
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混沌量子系统中衰变和破碎过程的半经典理论。

DOI:
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发表时间:
2008
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
通讯作者:
K. Richter
K. Richter
中科院分区:
--
文献类型:
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作者:
M. Gutiérrez;D. Waltner;J. Kuipers;K. Richter

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我们在半经典极限下考虑开放混沌系统中的量子衰变和光碎裂过程。我们设计了一种半经典的方法,它允许我们一致地计算经典衰变到高阶的量子修正,在逆海森堡时间的展开中。我们给出了具有和不具有时间逆对称的系统的结果,以及辛情形的结果,并将最近的结果推广到非定域初态。我们进一步分析了相关的光解离和光电离现象,并半经典地计算了截面关联,包括它们与Ehrenfest时间的关系。
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.
混沌导体的半经典理论
DOI: 10.1103/physrevlett.96.066804
发表时间: 2006
影响因子: 8.6
作者:
S. Heusler;S. Müller;P. Braun;F. Haake
通讯作者: F. Haake
DOI: 10.1103/physrevlett.98.044103
发表时间: 2007-01-26
影响因子: 8.6
作者:
Heusler, Stefan;Mueller, Sebastian;Haake, Fritz
通讯作者: Haake, Fritz