Thermal entanglement of a geometrically frustrated spin-1 Heisenberg diamond cluster

• URL: http://arxiv.org/abs/2301.03868v2
• Date: Thu, 12 Jan 2023 07:39:17 GMT
• Title: Thermal entanglement of a geometrically frustrated spin-1 Heisenberg diamond cluster
• Authors: Azadeh Ghannadan, Katarina Karlova and Jozef Strecka
• Abstract summary: Thermal entanglement of a geometrically frustrated spin-1 Heisenberg diamond cluster is examined within the framework of the exact diagonalization method. The calculated exact analytical results are applied in order to obtain theoretical prediction of the robustness of bipartite thermal entanglement of the tetranuclear nickel complex.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Thermal entanglement of a geometrically frustrated spin-1 Heisenberg diamond cluster is examined within the framework of the exact diagonalization method by computing the measure of entanglement negativity. The calculated exact analytical results are applied in order to obtain theoretical prediction of the robustness of bipartite thermal entanglement of the tetranuclear nickel complex [Ni4(CO3)2(aetpy)8](ClO4)4 (aetpy = 2-aminoethyl-pyridine) against rising temperature and magnetic field.

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