Entanglement in a Raman-driven cascaded system
C. Di Fidio, W. Vogel
TL;DR
This paper investigates entanglement dynamics in a cascaded atom-cavity system driven by Raman interaction, providing analytical solutions and methods to enhance and store entanglement through control of the Raman coupling.
Contribution
It introduces analytical solutions for entanglement evolution in a Raman-driven cascaded system and demonstrates methods to enhance and store entanglement via switching and monitoring.
Findings
Entanglement can be stored by switching off the Raman coupling.
Monitoring the radiation field can enhance atomic entanglement.
Analytical solutions for the system dynamics are derived.
Abstract
The dynamics of a cascaded system that consists of two atom-cavity subsystems is studied by using the quantum trajectory method. Considering the two atom-cavity subsystems driven by a Raman interaction, analytical solutions are obtained. Subsequently, the entanglement evolution between the two atoms is studied, and it is shown that the entanglement can be stored by switching off the Raman coupling. By monitoring the radiation field, the entanglement between the two atoms can be enhanced.
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