Wednesday, October 3, 2012

1210.0414 (B. Çakmak et al.)

Quantum Correlations in a Few-Atom Spin-1 Bose-Hubbard Model    [PDF]

B. Çakmak, G. Karpat, Z. Gedik
We study the thermal quantum correlations and entanglement in spin-1 Bose-Hubbard model with two and three particles. While we use negativity to calculate entanglement, more general non-classical correlations are quantified using a new measure based on a necessary and sufficient condition for zero-discord state. We demonstrate that the energy level crossings in the ground state of the system are signalled by both the behavior of thermal quantum correlations and entanglement.
View original: http://arxiv.org/abs/1210.0414

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