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Time-reversed memory effects

1990; American Physical Society; Volume: 41; Issue: 4 Linguagem: Inglês

10.1103/physrevb.41.2635

1095-3795

Richard Berkovits, M. Kaveh,

Nonlinear Dynamics and Pattern Formation

The random speckle patterns produced by disordered systems are shown to be highly correlated along any two directions which are related by time-reversal symmetry. This striking new phenomenon arises from the inclusion of crossed diagrams in the treatment of fluctuation phenomena, and in reflection yields a double peak for the memory-effect correlation function. Analytical expressions for the time-reversed memory-effect correlation functions in both reflection and transmission are presented and are found to be in excellent agreement with the results of a numerical simulation.