Preprint 52/2012

Complete Entanglement Witness for Quantum Teleportation

Ming-Jing Zhao, Shao-Ming Fei, and Xianqing Li-Jost

Contact the author: Please use for correspondence this email.
Submission date: 17. Aug. 2012
published in: Physical review / A, 85 (2012) 5, art-no. 054301 
DOI number (of the published article): 10.1103/PhysRevA.85.054301
PACS-Numbers: 03.65.Ud, 03.67.Mn
Download full preprint: PDF (97 kB), PS ziped (256 kB)

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.

03.01.2020, 02:13