Atom-number squeezing and bipartite entanglement of two-component Bose-Einstein condensates: analytical results

Details Atom-number squeezing and bipartite entanglement of two-component Bose-Einstein condensates: analytical results Atom-number squeezing and bipartite entanglement of two-component Bose-Einstein condensates: analytical results

2009-12-02

arxiv.org/abs/0912.0444v1

J.Phys.B: At. Mol. Opt. Phys. 43 (2010)045301

Physics

Condensed Matter

Quantum Gases

9 pages, 3 figures

Scientific paper

10.1088/0953-4075/43/4/045301

We investigate spin dynamics of a two-component Bose-Einstein condensates with weak Josephson coupling. Analytical expressions of atom-number squeezing and bipartite entanglement are presented for atom-atom repulsive interactions. For attractive interactions, there is no number squeezing; however, the squeezing parameter is still useful to recognize the appearance of Schr\"{o}dinger's cat state.

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