Entanglement evolution of a two-qubit system with decay beyond rotating-wave approximation

Abstract

Two noninteracting atoms, initially entangled in Bell states, are coupled to a one-mode cavity. Based on the reduced non-perturbative quantum master equation, the entanglement evolution of the two atoms with decay is investigated beyond rotating-wave approximation. It is shown that the counter-rotating wave terms have great influence on the disentanglement behavior. The phenomenon of entanglement sudden death and entanglement sudden birth will occur.

4 pages, 6 figures

References in corpus (13)

• Finite-Time Disentanglement via Spontaneous Emission
• Non-Markovian effects on the dynamics of entanglement
• Dark periods and revivals of entanglement in a two qubit system
• Sudden Birth Versus Sudden Death of Entanglement in Multipartite Systems
• Sudden Death of Entanglement: Classical Noise Effects
• Sudden Death of Entanglement of Two Jaynes-Cummings Atoms
• A Study on the Sudden Death of Entanglement
• Complete disentanglement by partial pure dephasing
• The Super-Strong Coupling Regime of Cavity Quantum Electrodynamics
• Disentanglement and decoherence in two-spin and three-spin systems under dephasing
• Quantum error correction may delay, but also cause, entanglement sudden death
• Irreversible decay of nonlocal entanglement via a reservoir of a single degree of freedom
• Sudden death and long-lived entanglement of two three-level trapped ions