@article{12095,
  author = {Michael Perlin and Chunlei Qu and Ana Maria Rey},
  title = {Spin squeezing with short-range spin-exchange interactions},
  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, α>D. 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, where achievable squeezing is primarily limited by the coherence time of a system. We identify the boundary between collective and Ising-limited squeezing behaviors with a dynamical phase transition between regions of parametrically distinct entanglement growth. Our predictions are testable in a variety of experimental cold atomic, molecular, and optical platforms.},
  year = {2020},
  journal = {Physical Review Letters},
  volume = {125},
  chapter = {223401},
  pages = {223401},
  month = {2020-11},
  doi = {10.1103/PhysRevLett.125.223401},
}