Three-level laser quantum optics system coupled to thermal reservoirs

TAKELE TESHOME SOMANO *

Department of Physics, College of Natural and Computational Science, Wolaita Sodo University, Wolaita Sodo, Ethiopia.
 
Research Article
Comprehensive Research and Reviews in Engineering and Technology, 2022, 01(01), 045–055​.
Article DOI: 10.57219/crret.2022.1.1.0021
Publication history: 
Received on 05 July 2022; revised on 11 August 2022; accepted on 14 August 2022​
 
Abstract: 
In this study, we investigate the quantum characteristics of a three-level system coupled to a two-mode thermal reservoir. We employ stochastic differential equations, which incorporate normal ordering, to describe the dynamics of the system. Our primary focus is on examining the squeezing and entanglement properties of the two-mode cavity light. The results of the study demonstrate a significant level of entanglement between the two cavity modes. Furthermore, there exists a direct correlation between the degree of entanglement and the degree of two-mode squeezing. This discovery emphasizes the potential for enhancing the non-classical properties of the system by utilizing nonlinear optical elements. The study provides valuable insights into the interplay between squeezing, entanglement, and thermal noise in a three-level system coupled to a two-mode thermal reservoir. The findings suggest that the introduction of nonlinear elements can enhance the squeezing and entanglement of the system, even in the presence of thermal noise.
 
Keywords: 
Laser; Photon; Quadrature variation; Superposition; Thermal reservoir
 
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