Dynamics of two-level atom interaction with single-mode field

TL;DR

This paper investigates the interaction dynamics between a two-level atom and a single-mode field within different reservoirs, revealing spectral characteristics and the influence of reservoir types on emission properties.

Contribution

It provides a detailed analysis of how squeezed vacuum and thermal reservoirs affect the fluorescent spectrum and stimulated emission of a two-level atom.

Findings

Fluorescent spectrum exhibits a single Lorentzian peak.

Squeezed vacuum reservoir stimulates photon emission.

Thermal reservoir produces a more powerful spectrum.

Abstract

In this paper, the dynamics of fluorescent light emitted by a two-level atom interacts with squeezed vacuum reservoir is studied wisely using two-time correlation function fundamentals. The mathematical analysis shows the fluorescent spectrum of light emitted by the atom is turned out to be a single peak at a Lorentz's frequency. On the other hand, the squeezed vacuum reservoir input is responsible to the stimulated emission of photon from the atom. Moreover, it is identified that thermal reservoir is more efficient than squeezed vacuum reservoir to have valuable power spectrum.