Phase-Controlled Atom-Photon Entanglement in a Three-Level lambda-Type Closed-Loop Atomic System
Ali Mortezapour, Zeinab Kordi, and Mohammad Mahmoudi
TL;DR
This paper investigates phase-controlled atom-photon entanglement in a three-level atomic system, demonstrating how entanglement can be manipulated via phase and intensity of applied fields, with conditions for disentanglement identified.
Contribution
It introduces phase control of entanglement in a three-level lambda-type system and explores conditions for entanglement and disentanglement beyond multi-photon resonance.
Findings
Entanglement is phase-dependent and controllable.
Disentanglement occurs at specific Rabi frequencies.
Entanglement can be tuned by field intensity and phase.
Abstract
The atom-photon entanglement is studied in a three-level lambda-type closed-loop atomic system in multi-photon resonance condition and beyond it. It is shown that the von Neumann entropy in such a system is phase dependent, and it can be controlled by either intensity or relative phase of applied fields. It is demonstrated that for the special case of Rabi frequency of applied fields, the system is disentangled.
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Taxonomy
TopicsQuantum Information and Cryptography · Quantum optics and atomic interactions · Mechanical and Optical Resonators