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arXiv · 2105.01126

Anisotropy-Exchange Resonance as a Mechanism for Entangled State Switching

Eric D. Switzer·Xiao-Guang Zhang·Talat S. Rahman
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Abstract

We explore the three-particle spin model of an $S_{1}=\frac{1}{2}$ particle (e.g. a stationary electron) interacting with two spin-coupled $S_{\text{2,3}}$ particles with exchange coupling and magnetic anisotropy. We find 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.

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Eric D. Switzer, Xiao-Guang Zhang, Talat S. Rahman. 2021-05-03. Anisotropy-Exchange Resonance as a Mechanism for Entangled State Switching. https://doi.org/10.1103/physreva.104.052434

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