Fidelity of a Bose-Einstein Condensate
Mesoscale and Nanoscale Physics
2009-11-11 v1
Abstract
We investigate fidelity, the Loschmidt echo, for a Bose-Einstein Condensate. It is found that the fidelity decays with time in various ways (exponential, Gaussian, and power-law), depending on the choice of initial coherent state as well as the parameters that determine properties of the underlying classical dynamics. Moreover, high fidelity is found for initial states lying in the regular region of a mixed-type phase space. A possible experimental scheme is suggested.
Cite
@article{arxiv.cond-mat/0503036,
title = {Fidelity of a Bose-Einstein Condensate},
author = {Jie Liu and Wenge Wang and Chuanwei Zhang and Qian Niu and Baowen Li},
journal= {arXiv preprint arXiv:cond-mat/0503036},
year = {2009}
}
Comments
5 pages and 6 figures