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arXiv · 0911.4974

Experimental observation of Loschmidt time reversal of a Quantum Chaotic System

A. Ullah·M. D. Hoogerland
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Abstract

We have performed an experiment to demonstrate the approximate time reversal of a "chaotic" time evolution of atomic deBroglie waves. We use ultra cold atoms from a Bose-Einstein condensate in a quantum $\delta$-kicked rotor experiment, and show that an initial state can be approximately re-created even after a period of "chaotic" evolution (a number of kicks). As this mechanism only works for a very narrow range of momenta, the net effect is a narrowing of the momentum distribution after the kick sequence.

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A. Ullah, M. D. Hoogerland. 2009-11-25. Experimental observation of Loschmidt time reversal of a Quantum Chaotic System. https://arxiv.org/abs/0911.4974

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