Spin squeezing in nonlinear spin coherent states

Details Spin squeezing in nonlinear spin coherent states Spin squeezing in nonlinear spin coherent states

2001-03-12

arxiv.org/abs/quant-ph/0103061v1

J. Opt. B: Quantum and Semiclassical Optics, 3 (2001)93-96

Physics

Quantum Physics

4 pages, 2 figs, revised version submitted to J. Opt. B

Scientific paper

10.1088/1464-4266/3/3/304

We introduce the nonlinear spin coherent state via its ladder operator formalism and propose a type of nonlinear spin coherent state by the nonlinear time evolution of spin coherent states. By a new version of spectroscopic squeezing criteria we study the spin squeezing in both the spin coherent state and nonlinear spin coherent state. The results show that the spin coherent state is not squeezed in the x, y, and z directions, and the nonlinear spin coherent state may be squeezed in the x and y directions.

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