تقرير
Surprising relations between parametric level correlations and fidelity decay
| العنوان: | Surprising relations between parametric level correlations and fidelity decay |
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| المؤلفون: | Kohler, H., Smolyarenko, I., Pineda, C., Guhr, T., Leyvraz, F., Seligman, T. H. |
| المصدر: | Phys. Rev. Lett 100, 190404 (2008) |
| سنة النشر: | 2007 |
| المجموعة: | Nonlinear Sciences Condensed Matter |
| مصطلحات موضوعية: | Nonlinear Sciences - Chaotic Dynamics, Condensed Matter - Disordered Systems and Neural Networks |
| الوصف: | Unexpected relations between fidelity decay and cross form--factor, i.e., parametric level correlations in the time domain are found both by a heuristic argument and by comparing exact results, using supersymmetry techniques, in the framework of random matrix theory. A power law decay near Heisenberg time, as a function of the relevant parameter, is shown to be at the root of revivals recently discovered for fidelity decay. For cross form--factors the revivals are illustrated by a numerical study of a multiply kicked Ising spin chain. Comment: 4 pages 3 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.100.190404 |
| URL الوصول: | http://arxiv.org/abs/0712.3370 |
| رقم الأكسشن: | edsarx.0712.3370 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.100.190404 |
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