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Journal of Physics B Atomic Molecular and Optical Physics

Amplitude-squared squeezed states in the Jaynes-Cummings model

Xiaoping Yang, Xiping Zheng

Published Feb 28, 1989• 11 citations
Publisher

Abstract

Amplitude-squared squeezing of the electromagnetic field is obtained in the Jaynes-Cummings model of an atomic transition coupled to a single-mode quantised electromagnetic field.
DOI
10.1088/0953-4075/22/4/014

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Amplitude-squared (AS) squeezing has been investigated for the m-photon Jaynes-Cummings model assuming the field to be initially in the squeezed states. The role played by intensity-dependent coupling has also been discussed. It has been shown that for the large initial average photon number [Formula: see text] with odd values of m, AS squeezing revokes permanently whereas with even values it recurs periodically. As m increases the revocation is hastened and the duration of occurrence decreases. Higher values of m for the initial field in a squeezed vacuum state can make one of the quadrature permanently squeezed. The AS squeezing behavior for two initial states of the atom, i.e., ground state versus excited state is also compared.