Parametric statistics of individual energy levels in random Hamiltonians
Abstract
We establish a general framework to explore parametric statistics of individual energy levels in disordered and chaotic quantum systems with unitary symmetry. The method is applied to the calculation of the universal intra-level velocity autocorrelation function and the distribution of level shifts under the influence of an arbitrary external perturbation.
- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- March 2003
- Bibcode:
- 2003APS..MARS17013S