Generation of generalized coherent states with two coupled Bose-Einstein condensates

Details Generation of generalized coherent states with two coupled Bose-Einstein condensates Generation of generalized coherent states with two coupled Bose-Einstein condensates

2005-07-05

arxiv.org/abs/quant-ph/0507050v1

Physics

Quantum Physics

Scientific paper

10.1016/j.aop.2005.09.003

We present a scheme to prepare generalized coherent states in a system with two species of Bose-Einstein condensates. First, within the two-mode approximation, we demonstrate that a Schrodinger cat-like can be dynamically generated and, by controlling the Josephson-like coupling strength, the number of coherent states in the superposition can be varied. Later, we analyze numerically the dynamics of the whole system when interspecies collisions are inhibited. Variables such as fractional population, Mandel parameter and variances of annihilation and number operators are used to show that the evolved state is entangled and exhibits sub-Poisson statistics.

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