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arXiv:2105.01126 · Physical Review A

Anisotropy-exchange resonance as a mechanism for entangled state switching

Eric D. Switzer, X.-G. Zhang, Talat Shahnaz Rahman

Published Nov 30, 2021• 11 citations
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Abstract

We explore the three-particle spin model of an ${S}_{1}=\frac{1}{2}$ particle (e.g., an electron) interacting with two spin-coupled ${S}_{\text{2,3}}$ particles with exchange coupling and magnetic anisotropy. We show that in the case of ${S}_{2,3}=1$ particles, the coupled particle entanglement states can be prepared, controlled, and read by the ${S}_{1}$ particle. We also find that for particular resonance conditions of the magnetic anisotropy strength $D$ and exchange coupling strength $J$, the entanglement state-switching behavior is maximized and is robust against a range of anisotropic application of the exchange coupling.

DOI
10.1103/physreva.104.052434

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