Disentanglement and Inseparability correlation : in two-qubit system

Abstract

Started from local universal isotropic disentanglement, a threshold inequality on reduction factors is proposed, which is necessary and sufficient for this type of disentanglement processes. Furthermore, we give the conditions realizing ideal disentanglement processes provided that some information on quantum states is known. In addition, based on fully entangled fraction, a concept called inseparability correlation is presented. Some properties on inseparability correlation coefficient are studied.

10 Pages, 2 Figures, REVTeX; to appear in PRA

References in corpus (5)

• Quantifying Entanglement
• Entanglement Measures and Purification Procedures
• Optimal Cloning of Pure States
• Optimal universal quantum cloning and state estimation
• Broadcasting of entanglement via local copying

Cited by in corpus (7)

• Quantum Cloning Machines and the Applications
• A Note on Fully Entangled Fraction
• Bell nonlocality and fully-entangled fraction measured in an entanglement-swapping device without quantum state tomography
• Maximally entangled state and fully entangled fraction
• Learning quantum phases via single-qubit disentanglement
• The reduction of the closest disentangled states
• Multipartite fully entangled fraction