Entanglement generation in double-$\Lambda $ system
Ling Zhou, Yong Hong Ma, Xin Yu Zhao
TL;DR
This paper investigates how entanglement can be generated and amplified in a double-$\Lambda$ atomic system using laser theory, providing conditions for entanglement existence and potential for practical quantum information applications.
Contribution
It introduces a dynamic evolution model for the two-mode field in a double-$\Lambda$ system and analyzes entanglement criteria specific to this configuration.
Findings
Two-mode field can be entangled under proper parameters.
Entanglement can be amplified in the double-$\Lambda$ system.
Conditions for entanglement existence are identified.
Abstract
In this paper, we study the generation of entanglement in a double- system. Employing standard method of laser theory, we deduce the dynamic evolution equation of the two-mode field. We analyze the available entanglement criterion for double- system and the condition of entanglement existence. Our results show that under proper parameters, the two-mode field can entangled and amlified.
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