Robust nuclear spin entanglement via dipolar interactions in polar molecules

• URL: http://arxiv.org/abs/2205.00190v2
• Date: Thu, 6 Apr 2023 18:43:40 GMT
• Title: Robust nuclear spin entanglement via dipolar interactions in polar molecules
• Authors: Timur V. Tscherbul, Jun Ye, and Ana Maria Rey
• Abstract summary: We propose a general protocol for on-demand generation of robust entangled states of $1Sigma$ and $2Sigma$ polar molecules. By encoding a spin-1/2 degree of freedom in a combined set of spin and rotational molecular levels, we theoretically demonstrate the emergence of effective spin-spin interactions of the Ising and XXZ forms.
• Score: 0.8315801422499862
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose a general protocol for on-demand generation of robust entangled states of nuclear and/or electron spins of ultracold $^1\Sigma$ and $^2\Sigma$ polar molecules using electric dipolar interactions. By encoding a spin-1/2 degree of freedom in a combined set of spin and rotational molecular levels, we theoretically demonstrate the emergence of effective spin-spin interactions of the Ising and XXZ forms, enabled by efficient magnetic control over electric dipolar interactions. We show how to use these interactions to create long-lived cluster and squeezed spin states.

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