Distillation of Bell states in open systems

Abstract

In this work we review the entire classification of 2x2 distillable states for protocols with a finite numbers of copies. We show a distillation protocol that allows to distill Bell states with non zero probability at any time for an initial singlet in vacuum. It is shown that the same protocol used in non zero thermal baths yields a considerable recovering of entanglement.

10 pages, 3 figures

References in corpus (6)

• Experimental investigation of the dynamics of entanglement: Sudden death, complementarity, and continuous monitoring of the environment
• Local filtering operations on two qubits
• Direct measurement of finite-time disentanglement induced by a reservoir
• The Lorentz singular value decomposition and its applications to pure states of 3 qubits
• Impossibility Criterion for Obtaining Pure Entangled States From Mixed States By Purifying Protocols
• On the dynamics of maximum extractable entanglement for open systems

Cited by in corpus (1)

• Emergence of maximal hidden quantum correlations and its trade-off with the filtering probability in dissipative two-qubit systems