Time reversal of Bose-Einstein condensates

Abstract

Using Gross-Pitaevskii equation, we study the time reversibility of Bose-Einstein condensates (BEC) in kicked optical lattices, showing that inside the regime of quantum chaos the dynamics can be inverted from explosion to collapse. The accuracy of time reversal decreases with the increase of atom interactions inside BEC, until it is completely lost. Surprisingly, quantum chaos helps to restore time reversibility. These predictions can be tested with existing experimental setups.

4 pages, 5 figures. References and discussion added. Research done at http://www.quantware.ups-tlse.fr/

References in corpus (7)

• Theory of Bose-Einstein condensation in trapped gases
• Formation and Propagation of Matter Wave Soliton Trains
• Dynamics of collapsing and exploding Bose-Einstein condensates
• Dynamics of Loschmidt echoes and fidelity decay
• Exploring the phase space of the quantum delta kicked accelerator
• Experimental observation of high-order quantum accelerator modes
• Loschmidt cooling by time reversal of atomic matter waves

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• Boltzmann-Loschmidt dispute reloaded quantum 150 years later
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