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Quantum Entanglement in Spin Dimers: Effects of a Magnetic Field and Heterogeneous g-Factors

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Journal of Contemporary Physics (Armenian Academy of Sciences) Aims and scope

Abstract

This work considers the spin-1/2 Heisenberg dimer, the mixed spin-(1/2,1) Heisenberg dimer and their quantum entanglement, particularly, the dependence of the entanglement on the system characteristics and the external magnetic field. The quantum entanglement in this work is determined using two different methods, namely ‘Negativity’ and ‘Concurrence’. The dependence of the corresponding quantities on spins Landé g-factors, system anisotropy constants and exchange constant is discussed.

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ACKNOWLEDGMENTS

The authors are grateful to N.S. Ananikyan and L.N. Ananikyan for fruitful discussions, as well as to A.G. Sargsyan, M.G. Asatryan, A.S. Kotanjyan for help in preparing the manuscript.

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Authors and Affiliations

  1. Yerevan State University, Yerevan, Armenia

    Z. A. Adamyan, S. A. Muradyan & V. R. Ohanyan

  2. CANDLE Synchrotron Research Institute, Yerevan, Armenia

    Z. A. Adamyan

Authors
  1. Z. A. Adamyan
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  2. S. A. Muradyan
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  3. V. R. Ohanyan
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Correspondence to Z. A. Adamyan.

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Translated by V. Musakhanyan

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Adamyan, Z.A., Muradyan, S.A. & Ohanyan, V.R. Quantum Entanglement in Spin Dimers: Effects of a Magnetic Field and Heterogeneous g-Factors. J. Contemp. Phys. 55, 292–298 (2020). https://doi.org/10.3103/S1068337220040027

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  • DOI: https://doi.org/10.3103/S1068337220040027

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