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arXiv · 1002.0557

Phase Transition, Entanglement and Squeezing in a Triple-Well Condensate

T. F. Viscondi·K. Furuya·M. C. de Oliveira
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Abstract

We provide an in-depth characterization of a three modes Bose-Einstein condensate trapped in a symmetric circular triple well potential. We analyze how a subsystem independent measure of entanglement, the purity related to the su(3) algebra, scales for increasing number of atoms and signals correctly the quantum phase transition between two dynamical regimes in a specific arrangement. Moreover, this measure, which is intrinsically related to particle entanglement, also depicts if some squeezing is occurring when we consider the system's ground state.

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T. F. Viscondi, K. Furuya, M. C. de Oliveira. 2010-02-02. Phase Transition, Entanglement and Squeezing in a Triple-Well Condensate. https://doi.org/10.1209/0295-5075%2F90%2F10014

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