Stability of Fock states in a two-component Bose-Einstein condensate with a regular classical counterpart

Details Stability of Fock states in a two-component Bose-Einstein condensate with a regular classical counterpart Stability of Fock states in a two-component Bose-Einstein condensate with a regular classical counterpart

2008-05-30

arxiv.org/abs/0805.4681v1

Phys.Rev.E, {\bf 77}, 056218 (2008)

Physics

Quantum Physics

8 pages and 8 figures

Scientific paper

10.1103/PhysRevE.77.056218

We study the stability of a two-component Bose-Einstein condensate (BEC) in the parameter regime in which its classical counterpart has regular motion. The stability is characterized by the fidelity for both the same and different initial states. We study as initial states the Fock states with definite numbers of atoms in each component of the BEC. It is found that for some initial times the two Fock states with all the atoms in the same component of the BEC are stabler than Fock states with atoms distributed in the two components. An experimental scheme is discussed, in which the fidelity can be measured in a direct way.

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