Irreversible decay of nonlocal entanglement via a reservoir of a single degree of freedom

Abstract

Recently, it has been realized that nonlocal disentanglement may take a finite time as opposite to the asymptotic decay of local coherences. We find in this paper that a sudden irreversible death of entanglement takes place in a two atom optical Stern-Gerlach model. In particular, the one degree non dissipative environment here considered suddenly destroys the initial entanglement of any Bell's states $|{\varphi }^{\pm }⟩$ superposition.

arXiv comment6 pages, 4 figures, improved presentation, v2: title changed, references added, accepted for publication in Phys. Rev. A (Fundamental concepts)

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• Breakdown of the rotating-wave approximation in entanglement description of spin anti-correlated states
• Quantum entanglement and disentanglement of multi-atom systems
• Dynamics of Geometric Discord and Measurement-Induced Nonlocality at Finite Temperature
• Continuous Quantum Error Correction Through Local Operations
• Topology of Entanglement Evolution of Two Qubits
• Entanglement evolution of a two-qubit system with decay beyond rotating-wave approximation
• Entangled coherent states under dissipation
• Spatial decoherence factor via the qubit-field interaction
• Photon Induced Entanglement in Atom-Cavity Systems