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arXiv · 2208.01869

Enhancing spin squeezing using soft-core interactions

Jeremy T. Young·Sean R. Muleady·Michael A. Perlin·Adam M. Kaufman·Ana Maria Rey
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Abstract

We propose a new protocol for preparing spin squeezed states in controllable atomic, molecular, and optical systems, with particular relevance to emerging optical clock platforms compatible with Rydberg interactions. By combining a short-ranged, soft-core potential with an external drive, we can transform naturally emerging Ising interactions into an XX spin model while opening a many-body gap. The gap helps maintain the system within a collective manifold of states where metrologically useful spin squeezing can be generated at a level comparable to the spin squeezing generated in systems with genuine all-to-all interactions. We examine the robustness of our protocol to experimentally-relevant decoherence and show favorable performance over typical protocols lacking gap protection.

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Jeremy T. Young, Sean R. Muleady, Michael A. Perlin, Adam M. Kaufman, Ana Maria Rey. 2022-08-03. Enhancing spin squeezing using soft-core interactions. https://arxiv.org/abs/2208.01869

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