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Local quantum uncertainty of SU(2) invariant states

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Abstract

In this research, we investigated the quantum correlation in SU(2) invariant quantum spin systems by using the local quantum uncertainty (LQU). The SU(2) invariant quantum spin states are invariant under global rotations of the subsystems, and in real physical systems, such states arise from states of isotropic spin systems in thermal equilibrium. We derive an analytic expression for the LQU of (2j + 1) ⊗ 2 and (2j + 1) ⊗ 3 quantum spin systems with SU(2) symmetry.

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Authors and Affiliations

  1. Physics Department, Azarbaijan Shahid Madani University, Tabriz, Iran

    Esfandyar Faizi & Bahram Ahansaz

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  1. Esfandyar Faizi
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  2. Bahram Ahansaz
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Correspondence to Bahram Ahansaz.

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Faizi, E., Ahansaz, B. Local quantum uncertainty of SU(2) invariant states. Journal of the Korean Physical Society 67, 2033–2038 (2015). https://doi.org/10.3938/jkps.67.2033

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  • DOI: https://doi.org/10.3938/jkps.67.2033

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