Generation of higher-order atomic dipole squeezing in a high-Q micromaser cavity. (VII). Entangled two-mode coherent states

Rui-Hua Xie and Qin Rao

Physica A: Statistical Mechanics and its Applications, 2002, vol. 315, issue 3, 427-456

Abstract: In our preceding paper V, we investigated the generation of higher-order atomic dipole squeezing (HOADS) in a nondegenerate two-photon Jaynes–Cummings model (NTPJCM) in the presence of Stark shift. In this paper, we continue to study HOADS in this model but focus on the specific cases that the radiation field is initially prepared in a two-mode entangled state (e.g., two-mode squeezed vacuum state, two-mode Perelomov and Barut–Girardello coherent states). It is found that increasing the fixed difference in the photon numbers of the two-mode entangled states of the radiation field could decrease the squeeze duration and shorten the squeeze period, and the detuning may lead to much effective HOADS by properly adjusting certain value. In general, the Stark shift has a destructive effect on HOADS, but the combined effect of the detuning and Stark shift could increase the squeeze duration and lead to regular and periodical HOADS pattern. The influence of atomic coherence on HOADS is also examined in detail.

Keywords: Squeezed state; Entangled state; Perelomov coherent state; Barut–Girardello coherent state; SU(2) coherent state; Quantum fluctuation; Uncertainty relation; Stark shift; Squeezed vacuum state; Dipole (search for similar items in EconPapers)
Date: 2002
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:315:y:2002:i:3:p:427-456

DOI: 10.1016/S0378-4371(02)01012-9

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