Phys. Rev. A 64, 053815 (2001) [6 pages]Spin squeezing in the Ising modelReceived 13 June 2001; published 12 October 2001 We analyze the collective spin noise in interacting spin systems. General expressions are derived for the short-time behavior of spin systems with general spin-spin interactions, and we suggest optimum experimental conditions for the detection of spin squeezing. For Ising models with site-dependent nearest-neighbor interactions, general expressions are presented for the spin squeezing parameter for all times. The reduction of collective spin noise can be used to verify the entangling powers of quantum computer architectures based on interacting spins. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.64.053815
DOI:
10.1103/PhysRevA.64.053815
PACS:
42.50.Dv, 75.10.Jm, 03.67.Lx
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