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

Authors :: Jin, G. R.
Wang, X. W.
Li, D.
Lu, Y. W.
Source :: J.Phys.B: At. Mol. Opt. Phys. 43 (2010)045301
Publication Year :: 2009
Abstract: 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.<br />Comment: 9 pages, 3 figures

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