Generation of higher-order atomic dipole squeezing in a high-Q micromaser cavity: VIII. multi-photon interaction

TL;DR

This paper investigates higher-order atomic dipole squeezing in a high-Q micromaser cavity, focusing on multi-photon interactions and arbitrary initial atomic states, revealing conditions that enhance or inhibit HOADS.

Contribution

It extends previous work by analyzing multi-photon interactions and arbitrary initial states, showing how these factors influence HOADS generation and stability.

Findings

HOADS does not occur with chaotic initial atomic states in vacuum fields

Coherent atomic states produce less efficient HOADS than arbitrary states

Large detuning can enhance and strengthen HOADS

Abstract

In our preceding serial works, we have investigated the generation of higher-order atomic dipole squeezing (HOADS) in a high-Q micromaser cavity, discussing the effects of dynamic Stark shift, atomic damping, atomic coherence and nonlinear one-photon processes and different initial states (for example, correlated and uncorrelated states, superposition states, squeezed vacuum). In this paper, we continue to study HOADS in a high-Q micromaser cavity, but consider that the atom interacts with the optical field via a multi-photon transition process and that the initial atom is arbitrarily prepared. For a vacuum initial field, we demonstrate that HOADS cannot occur if the atom is initially prepared in a chaotic state and that a coherent atomic state generates less efficient and stable HOADS than an arbitrary one. It is found that large detuning may lead to enhanced and strong HOADS.