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Phonon-induced spin squeezing based on geometric phase
2015
Physical Review A. Atomic, Molecular, and Optical Physics
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A scheme to achieve spin squeezing using a geometric phase induced by a single mechanical mode is proposed. The analytical and numerical results show that the ultimate degree of spin squeezing depends on the parameter n_th+1/2/Q√(N), which is the ratio between the thermal excitation, the quality factor and square root of ensemble size. The undesired coupling between the spin ensemble and the bath can be efficiently suppressed by Bang-Bang control pulses. With high quality factor, the ultimate
doi:10.1103/physreva.92.013825
fatcat:sak67w4ixzhhpj3amazsfestby