Robust nuclear spin entanglement via dipolar interactions in polar molecules

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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Cited by in corpus (8)

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• Quantum-Enhanced Metrology for Molecular Symmetry Violation using Decoherence-Free Subspaces
• General classification of qubit encodings in ultracold diatomic molecules
• Coherence of Symmetry-Protected Rotational Qubits in Cold Polyatomic Molecules
• Resource state generation for a multispin register in a hybrid matter-photon quantum information processor
• Highly spin-polarized molecules via collisional microwave pumping