Flower-like squeezing in the motion of a laser-driven trapped ion

Details Flower-like squeezing in the motion of a laser-driven trapped ion Flower-like squeezing in the motion of a laser-driven trapped ion

2001-11-28

arxiv.org/abs/quant-ph/0111150v1

Physics

Quantum Physics

7 pages, 6 figures, Revtex

Scientific paper

We investigate the Nth order amplitude squeezing in the fan-state |\xi ;2k,f>_F which is a linear superposition of the 2k-quantum nonlinear coherent states. Unlike in usual states where an ellipse is the symbol of squeezing, a 4k-winged flower results in the fan state. We first derive the analytical expression of squeezing for arbitrary k, N, f and then study in detail the case of a laser-driven trapped ion characterized by a specific form of the nonlinear function f. We show that the lowest order in which squeezing may appear and the number of directions along which the amplitude may be squeezed depend only on k whereas the precise directions of squeezing are determined also by the other physical parameters involved. Finally, we present a scheme to produce such fan-states.

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