TY - JOUR
T1 - Spin Squeezing with Short-Range Spin-Exchange Interactions
AU - Perlin, Michael A.
AU - Qu, Chunlei
AU - Rey, Ana Maria
N1 - Publisher Copyright:
© 2020 American Physical Society.
PY - 2020/11/24
Y1 - 2020/11/24
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevLett.125.223401
DO - 10.1103/PhysRevLett.125.223401
M3 - Article
C2 - 33315447
AN - SCOPUS:85097320578
SN - 0031-9007
VL - 125
JO - Physical Review Letters
JF - Physical Review Letters
IS - 22
M1 - 223401
ER -