Abstract
We provide formulas for fidelity decay and parametric energy correlations for random matrix ensembles where time-reversal invariance of the original Hamiltonian is broken by the perturbation. Like in the case of a symmetry conserving perturbation a simple relation between both quantities exists. Fidelity freeze is observed for systems with even and odd spin.
- Received 7 April 2011
DOI:https://doi.org/10.1103/PhysRevE.84.061133
©2011 American Physical Society