|
related topics |
{classical, space, random} |
{time, wave, function} |
{state, phys, rev} |
{equation, function, exp} |
{energy, gaussian, time} |
{time, decoherence, evolution} |
|
Stability of quantum motion in regular systems: a uniform semiclassical
approach
Wen-ge Wang, G. Casati, Baowen Li
abstract: We study the stability of quantum motion of classically regular systems in
presence of small perturbations. Onthe base of a uniform semiclassical theory
we derive the fidelity decay which displays a quite complexbehaviour, from
Gaussian to power law decay $t^{-\alpha}$ with $1 \le \alpha \le 2$.
Semiclassical estimates are given for the time scales separating the different
decaying regions and numerical results are presented which confirm our
theoretical predictions.
- oai_identifier:
- oai:arXiv.org:quant-ph/0609112
- categories:
- quant-ph nlin.SI
- comments:
- 5 pages, 4 figures, published version
- arxiv_id:
- quant-ph/0609112
- journal_ref:
- Phys. Rev. E 75, 016201 (2007)
- created:
- 2006-09-14
- updated:
- 2007-01-19
Full article ▸
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