THERMAL SCIENCE

International Scientific Journal

Eied Mahmoud Khalil

,

Mahmoud Y. Abd-Rabbou

,

Hammad Alotaibi

,

Raed Althobaiti

EXTERNAL FIELD-INDUCED SQUEEZING IN A FOUR-LEVEL ATOM INSIDE A CAVITY SYSTEM

ABSTRACT
This paper delves into the influence of an external classical field on the statistical and dynamical properties of a four-level atom interacting with a cavity field. Leveraging mathematical transformations applied to the external classical field, the system's wave function was derived. Subsequently, the impact of this external field and a detuning parameter on atomic inversion, Shannon-entropy, the Q-function, and relative coherence is explored. The analysis encompassed three distinct initial states for the atomic system. The results unveiled that the specific type of classical field employed acts as a control parameter, inducing squeezing within the system, as demonstrably evidenced by the Q-function analysis. Conversely, the influence of the detuning parameter exhibited dependence on the initial state of the atomic system. However, in broader terms, it appears to be responsible for driving the system towards chaotic behavior.
KEYWORDS
external classical field, shannon-entropy, Q-function, relative coherence
PAPER SUBMITTED: 2024-06-22
PAPER REVISED: 2024-09-02
PAPER ACCEPTED: 2024-10-21
PUBLISHED ONLINE: 2025-01-25
DOI REFERENCE: https://doi.org/10.2298/TSCI2406855K
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2024, VOLUME 28, ISSUE Issue 6, PAGES [4855 - 4865]
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External field-induced squeezing in a four-level atom inside a cavity system

2025 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence