Spin Squeezing with Short-Range Spin-Exchange Interactions

Michael A. Perlin, Chunlei Qu, Ana Maria Rey

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

We investigate many-body spin squeezing dynamics in an XXZ model with interactions that fall off with distance r as 1/rα in D=2 and 3 spatial dimensions. In stark contrast to the Ising model, we find a broad parameter regime where spin squeezing comparable to the infinite-range α=0 limit is achievable even when interactions are short ranged, αD. A region of "collective"behavior in which optimal squeezing grows with system size extends all the way to the α limit of nearest-neighbor interactions. Our predictions, made using the discrete truncated Wigner approximation, are testable in a variety of experimental cold atomic, molecular, and optical platforms.

Original languageEnglish
Article number223401
JournalPhysical Review Letters
Volume125
Issue number22
DOIs
StatePublished - 24 Nov 2020

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