Short-time enhancement of the decay of coherent excitations in Bose-Einstein condensates

Nir Bar-Gill; Eitan E. Rowen; Gershon Kurizki; Nir Davidson

doi:10.1103/PhysRevLett.102.110401

Short-time enhancement of the decay of coherent excitations in Bose-Einstein condensates

Nir Bar-Gill^*
, Eitan E. Rowen
, Gershon Kurizki
, Nir Davidson

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

We study, both experimentally and theoretically, short-time modifications of the decay of excitations in a Bose-Einstein Condensate (BEC) embedded in an optical lattice. Strong enhancement of the decay is observed compared to the Golden Rule results. This enhancement of decay increases with the lattice depth. It indicates that the description of decay modifications of few-body quantum systems also holds for decay of many-body excitations of a BEC.

Original language	English
Article number	110401
Journal	Physical Review Letters
Volume	102
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.102.110401
State	Published - 17 Mar 2009
Externally published	Yes

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10.1103/PhysRevLett.102.110401

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abstract = "We study, both experimentally and theoretically, short-time modifications of the decay of excitations in a Bose-Einstein Condensate (BEC) embedded in an optical lattice. Strong enhancement of the decay is observed compared to the Golden Rule results. This enhancement of decay increases with the lattice depth. It indicates that the description of decay modifications of few-body quantum systems also holds for decay of many-body excitations of a BEC.",

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AB - We study, both experimentally and theoretically, short-time modifications of the decay of excitations in a Bose-Einstein Condensate (BEC) embedded in an optical lattice. Strong enhancement of the decay is observed compared to the Golden Rule results. This enhancement of decay increases with the lattice depth. It indicates that the description of decay modifications of few-body quantum systems also holds for decay of many-body excitations of a BEC.

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Short-time enhancement of the decay of coherent excitations in Bose-Einstein condensates

Abstract

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