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Average entanglement of spin 1 and 1/2 pair

  • Research Article
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Central European Journal of Physics

Abstract

We study the entanglement features of the ground state of a system composed of spin 1 and 1/2 parts. In the light of the ground state degeneracy, the notion of average entanglement is used to measure the entanglement of the Hilbert subspace. The entanglement properties of both a general superposition as well as the mixture of the degenerate ground states are discussed by means of average entanglement and the negativity respectively.

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Authors and Affiliations

  1. Laboratory for Quantum Information and Department of Applied Physics, China Jiliang University, Xiasha College Park, Hangzhou, 310018, P.R. China

    Guo-Qiang Zhu

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  1. Guo-Qiang Zhu
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Correspondence to Guo-Qiang Zhu.

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Zhu, GQ. Average entanglement of spin 1 and 1/2 pair. centr.eur.j.phys. 7, 135–140 (2009). https://doi.org/10.2478/s11534-008-0129-7

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  • DOI: https://doi.org/10.2478/s11534-008-0129-7

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