Complete Entanglement Witness for Quantum Teleportation

Abstract

We propose a set of linear quantum entanglement witnesses constituted by local quantum-mechanical observables with each two possible measurement outcomes. These witnesses detect all the entangled resources which give rise to a better fidelity than separable states in quantum teleportation and present both sufficient and necessary conditions in experimentally detecting the useful resources for quantum teleportation.

3 pages

References in corpus (7)

• Entanglement detection
• Detecting Genuine Multipartite Entanglement with Two Local Measurements
• Necessary and sufficient conditions for bipartite entanglement
• Gisin's Theorem for Arbitrary Dimensional Multipartite States
• A Note on Fully Entangled Fraction
• Upper bound of the fully entangled fraction
• Inequalities Detecting Quantum Entanglement for $2\otimes d$ Systems