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Quantum correlations in a few-atom spin-1 Bose-Hubbard model

Çakmak, Barış and Karpat, Göktuğ and Gedik, Zafer (2013) Quantum correlations in a few-atom spin-1 Bose-Hubbard model. Physica Scripta, T153 . ISSN 0031-8949 (Print) 1402-4896 (Online)

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Official URL: http://dx.doi.org/10.1088/0031-8949/2013/T153/014008

Abstract

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.

Item Type:Article
Additional Information:Article Number: 014008
Subjects:Q Science > QC Physics > QC170 Atomic physics. Quantum theory.
ID Code:22877
Deposited By:Zafer Gedik
Deposited On:20 Jan 2014 20:51
Last Modified:17 Sep 2015 14:23

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