Sensitivity of quantum chaotic wavefunction intensities to changes in external perturbations
arXiv:cond-mat/9507004 · doi:10.1103/PhysRevLett.75.1360
Abstract
We examine the sensitivity of wavefunction intensities in chaotic quantum systems to small changes in an arbitrary external perturbation. A universal scaling is proposed for all three Dyson ensembles and a novel theoretical approach is used to determine exact expressions for systems which violate T-invariance. Analytical results are compared with numerical simulations of tight-binding Anderson Hamiltonians.
7 pages, RevTeX 3.0, 3 Postscript figures