Anisotropy-exchange resonance as a mechanism for entangled state switching

Eric D. Switzer, Xiao-Guang Zhang, and Talat S. Rahman
Phys. Rev. A 104, 052434 – Published 30 November 2021

Abstract

We explore the three-particle spin model of an S1=12 particle (e.g., an electron) interacting with two spin-coupled S2,3 particles with exchange coupling and magnetic anisotropy. We show that in the case of S2,3=1 particles, the coupled particle entanglement states can be prepared, controlled, and read by the S1 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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  • Received 2 May 2021
  • Revised 15 October 2021
  • Accepted 11 November 2021

DOI:https://doi.org/10.1103/PhysRevA.104.052434

©2021 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & TechnologyCondensed Matter, Materials & Applied Physics

Authors & Affiliations

Eric D. Switzer1, Xiao-Guang Zhang2, and Talat S. Rahman1,*

  • 1Department of Physics, University of Central Florida, Orlando, Florida 32816, USA
  • 2Department of Physics, Center for Molecular Magnetic Quantum Materials and Quantum Theory Project, University of Florida, Gainesville, Florida 32611, USA

  • *Corresponding author: talat.rahman@ucf.edu

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Vol. 104, Iss. 5 — November 2021

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