| License: Creative Commons: Attribution-Noncommercial-Share Alike 3.0 PDF - Published Version (982kB) | |
| PDF - Accepted Version arXiv PDF (29.07.2008) (463kB) | |
| PDF - Submitted Version arXiv PDF (03.04.2008) (665kB) |
- URN to cite this document:
- urn:nbn:de:bvb:355-epub-78003
- DOI to cite this document:
- 10.5283/epub.7800
Abstract
We address the sensitivity of quantum mechanical time evolution by considering the time decay of the Loschmidt echo (LE) (or fidelity) for local perturbations of the Hamiltonian. Within a semiclassical approach, we derive analytical expressions for the LE decay for chaotic systems for the whole range from weak to strong local perturbations and identify different decay regimes which complement ...
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