Statistics of Oscillator Strengths in Chaotic Systems
Nobuhiko Taniguchi; A. V. Andreev; B. L. Altshuler; Nobuhiko Taniguchi; Department of Physics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; NEC Research Institute - 4 Independence Way, NJ 08540, USA; A. V. Andreev; Department of Physics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; NEC Research Institute - 4 Independence Way, NJ 08540, USA; B. L. Altshuler; Department of Physics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; NEC Research Institute - 4 Independence Way, NJ 08540, USA
Журнал:
EPL (Europhysics Letters)
Дата:
1995-03-01
Аннотация:
The statistical description of oscillator strengths for systems like hydrogen in a magnetic field is developed by using the supermatrix nonlinear σ-model. The correlator of oscillator strengths is found to have a universal parametric and frequency dependence, and its analytical expression is given. This universal expression applies to quantum chaotic systems with the same generality as Wigner-Dyson statistics.
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