Effects of atom and nonlinear crystal on quantum properties of cavity light
Year: 2025
Type: article
Abstract: We examine the cavity modes with a nonlinear crystal and a lambda-type three-level atom coupled to the squeezed vacuum reservoir. The expectation values of the cavity and atomic variables at steady state have been used to determine quadrature variances and logarithmic negativity. The cavity modes exhibit quadrature squeezing and entanglement according to the criteria. The existence of a nonlinear crystal in the cavity and squeezed vacuum reservoir coupling the cavity modes increases the degree of squeezing and entanglement. The coupling constant for atom and cavity modes reduces both the degree of squeezing and entanglement. Furthermore, Duan et al. and logarithmic negativity criteria for entanglement are directly proportional to the variance of the minus quadrature.
Source: Results in Optics
Authors: Abebe Yeshaw, Misrak Getahun
Institution: Hawassa University
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,470
OpenAlex ID: W4410031970