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arXiv · 2205.00190

Robust nuclear spin entanglement via dipolar interactions in polar molecules

Timur V. Tscherbul·Jun Ye·Ana Maria Rey
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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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Timur V. Tscherbul, Jun Ye, Ana Maria Rey. 2022-04-30. Robust nuclear spin entanglement via dipolar interactions in polar molecules. https://doi.org/10.1103/physrevlett.130.143002

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