Nonlinear coherent state of an exciton in a wide quantum dot

Details Nonlinear coherent state of an exciton in a wide quantum dot Nonlinear coherent state of an exciton in a wide quantum dot

2011-12-11

arxiv.org/abs/1112.2344v1

J. Phys. B: At. Mol. Opt. Phys. 41, 225501 (2008)

Physics

Quantum Physics

Scientific paper

10.1088/0953-4075/41/22/225501

In this paper, we derive the dynamical algebra of a particle confined in an infinite spherical well by using the $f$-deformed oscillator approach. We consider an exciton with definite angular momentum in a wide quantum dot interacting with two laser beams. We show that under the weak confinement condition, and quantization of the center-of-mass motion of exciton, the stationary state of it can be considered as a special kind of nonlinear coherent states which exhibits the quadrature squeezing.

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