Loschmidt cooling by time reversal of atomic matter waves

Details Loschmidt cooling by time reversal of atomic matter waves Loschmidt cooling by time reversal of atomic matter waves

2007-10-25

arxiv.org/abs/0710.4860v3

Phys. Rev. Lett. 100, 044106 (2008)

Physics

Condensed Matter

Statistical Mechanics

revtex 4 pages, 5 figs, research at http://www.quantware.ups-tlse.fr/, new data and modifications added

Scientific paper

10.1103/PhysRevLett.100.044106

We propose an experimental scheme which allows to realize approximate time reversal of matter waves for ultracold atoms in the regime of quantum chaos. We show that a significant fraction of the atoms return back to their original state, being at the same time cooled down by several orders of magnitude. We give a theoretical description of this effect supported by extensive numerical simulations. The proposed scheme can be implemented with existing experimental setups.

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