Tripartite thermal correlations in an inhomogeneous spin–star system

2010/09/30 by F. Anzà, F Anzà, B. Militello +3
Chemistry · Materials Science · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Chemical and Physical Properties of Materials #Coupling (piping) #Homogeneity (statistics) #Negativity effect #Spins #Theoretical and Computational Physics #Thermal #quant-ph

paper · pdf · doi:10.1088/0953-4075/43/20/205501

published as J. Phys. B: At. Mol. Opt. Phys. 43 (2010) 205501 · 8 pages, 9 figures

openalex publication_date 2010/10/04 · arxiv created 2010/10/05 · arxiv updated 2015/05/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

We exploit the tripartite negativity to study the thermal correlations in a tripartite system, that is, the three outer spins interacting with the central one in a spin–star system. We analyse the dependence of such correlations on the homogeneity of interactions, starting from the case where central–outer spin interactions are identical and then focusing on the case where the three coupling constants are different. We single out some important differences between the negativity and the concurrence.

Citations

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