Atomic Inversion and Entanglement Dynamics for Squeezed Coherent Thermal States in the Jaynes-Cummings Model

TL;DR

This paper investigates how thermal and squeezed photons influence atomic inversion and entanglement in the Jaynes-Cummings model, revealing their counteracting effects on photon distribution and quantum dynamics.

Contribution

It introduces a detailed analysis of the interplay between thermal and squeezed photons on atom-field interactions within the Jaynes-Cummings framework, highlighting their impact on quantum properties.

Findings

Thermal photons delocalize the photon counting distribution.

Squeezed photons localize the photon counting distribution.

Thermal and squeezed photons significantly affect atomic inversion and entanglement dynamics.

Abstract

The tussling interplay between the thermal photons and the squeezed photons is discussed. The `classical noise' is represented by the thermal photons and the `quantum noise' is represented by the squeezed photons, which are pitted against each other in the background of a coherent field (represented by the coherent photons). The photon counting distribution (PCD) corresponding to the squeezed coherent thermal states are employed for this purpose. It is observed that the addition of thermal photons and squeezed photons have counterbalancing effects, by delocalizing and localizing the PCD, respectively. Various aspects of the atom-field interaction, like the atomic inversion, entanglement dynamics in the Jaynes-Cummings model have been investigated. Particular attention is given to the study of atomic inversion and entanglement dynamics due to the addition of thermal and squeezed photons to the coherent state. The interplay of thermal photons and squeezed photons have drastic effects on the PCD, atomic inversion and entanglement dynamics of the atom-field interaction.