Controlling entanglement sudden death in cavity QED by classical driving fields

Abstract

We investigate the entanglement dynamics of a quantum system consisting of two-level atoms interacting with vacuum or thermal fields with classical driving fields. We find that the entanglement of the system can be improved by adjusting the classical driving field. The influence of the classical field and the purity of the initial state on the entanglement sudden death is also studied. It is shown that the time of entanglement sudden death can be controlled by the classical driving fields. Particularly, the entanglement sudden death phenomenon will disappear if the classical driving fields are strong enough.

References in corpus (21)

• A computable measure of entanglement
• Quantifying Entanglement
• Finite-Time Disentanglement via Spontaneous Emission
• The logarithmic negativity: A full entanglement monotone that is not convex
• Entanglement Measures and Purification Procedures
• Optomechanical entanglement between a movable mirror and a cavity field
• Non-Markovian effects on the dynamics of entanglement
• Creation of Entanglement by Interaction with a Common Heat Bath
• Strong-driving-assisted multipartite entanglement in cavity QED
• Dark periods and revivals of entanglement in a two qubit system
• Entanglement induced by a single-mode heat environment
• Sudden Death of Entanglement: Classical Noise Effects
• Creating and probing macroscoping entanglement with light
• Sudden Death of Entanglement of Two Jaynes-Cummings Atoms
• Entanglement dynamics of two independent qubits in environments with and without memory
• Subsystem Purity as an Enforcer of Entanglement
• Scalable superconducting qubit circuits using dressed states
• Hastening, delaying, or averting sudden death of quantum entanglement
• Noise-induced finite-time disentanglement in two-atomic system
• Local aspects of disentanglement induced by spontaneous emission
• Control the entanglement of two atoms in an optical cavity via white noise

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• Thermal effects on bipartite and multipartite correlations in fiber coupled cavity arrays