Tripartite entanglement in mixed-spin triangle trimmer

Authors

  • Zh. Adamyan Laboratory of Theoretical Physics, Yerevan State University, 1 Alex Manoogian St., 0025 Yerevan, Armenia; CANDLE, Synchrotron Research Institute, 31 Acharyan St., 0040 Yerevan, Armenia https://orcid.org/0000-0001-5937-2675
  • V. Ohanyan Laboratory of Theoretical Physics, Yerevan State University, 1 Alex Manoogian St., 0025 Yerevan, Armenia; CANDLE, Synchrotron Research Institute, 31 Acharyan St., 0040 Yerevan, Armenia https://orcid.org/0000-0002-7810-7321

DOI:

https://doi.org/10.5488/cmp.28.33703

Keywords:

tripartite entanglement, single molecule magnets, non-conserving magnetization

Abstract

Heisenberg model spin systems offer favourable and manageable physical settings for generating and manipulating entangled quantum states. In this work mixed spin-(1/2,1/2,1) Heisenberg spin trimmer with two different but isotropic Landé g-factors and two different exchange constants is considered. The study undertakes the task of finding the optimal parameters to create entangled states and control them by external magnetic field. The primary objective of this work is to examine the tripartite entanglement of a system and the dependence of the tripartite entanglement on various system parameters. Particularly, the effects of non-conserving magnetization are in the focus of our research. The source of non-commutativity between the magnetic moment operator and the Hamiltonian is non-uniformity of g-factors. To quantify the tripartite entanglement, an entanglement measure refered to as “tripartite negativity” has been used in this work.

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Published

2025-09-23

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Vol. 28 No. 3 (2025)

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Copyright (c) 2025 Zh. Adamyan, V. Ohanyan

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How to Cite

[1]
Z. Adamyan and V. Ohanyan, “Tripartite entanglement in mixed-spin triangle trimmer”, Condens. Matter Phys., vol. 28, no. 3, p. 33703, Sep. 2025, doi: 10.5488/cmp.28.33703.

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