Imaginary Potential Induced Quantum Coherence for Bose-Einstein Condensates

Details Imaginary Potential Induced Quantum Coherence for Bose-Einstein Condensates Imaginary Potential Induced Quantum Coherence for Bose-Einstein Condensates

2009-12-21

arxiv.org/abs/0912.4170v1

Phys. Rev. A 82, 053615 (2010)

Physics

Condensed Matter

Quantum Gases

4 pages, 4 figures

Scientific paper

The role of complex potentials in single-body Schr\H{o}dinger equation has been studied intensively. We study the quantum coherence for degenerate Bose gases in complex potentials, when the exchange symmetry of identical bosons is considered. For initially independent Bose-Einstein condensates, it is shown that even very weak imaginary potential can induce perfect quantum coherence between different condensates. The scheme to observe imaginary potential induced quantum coherence is discussed.

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