197 citations · 1.2k across the 29 of their papers we have counts for
3 papers · 1 filter
Decay of the Loschmidt Echo for quantum states with sub-Planck scale structures
Ph. Jacquod, I. Adagideli, C. W. J. Beenakker
Quantum states extended over a large volume in phase space have oscillations from quantum interferences in their Wigner distribution on scales smaller than [W.H. Zurek, Nat…
Ehrenfest times for classically chaotic systems
P. G. Silvestrov, C. W. J. Beenakker
We describe the quantum mechanical spreading of a Gaussian wave packet by means of the semiclassical WKB approximation of Berry and Balazs. We find that the time scale on which…
Golden rule decay versus Lyapunov decay of the quantum Loschmidt echo
Ph. Jacquod, P. G. Silvestrov, C. W. J. Beenakker
The overlap of two wave functions evolving in time with slightly different Hamiltonians decays exponentially, for perturbation strengths greater than the level spacing. We present…