Detection of the ideal resource for multiqubit teleportation

Autor: Ming-Jing Zhao, Shao-Ming Fei, Bin Chen
Rok vydání: 2015
Předmět:
Zdroj: Chinese Physics B. 24:070302
ISSN: 1674-1056
Popis: We give a sufficient condition for detecting the entanglement resource for perfect multiqubit teleportation. The criterion involves only local measurements on some complementary observables and can be experimentally implemented. It is also a necessary condition for full separability of multiqubit states. Moreover, by proving the optimality of teleportation witnesses, we solve the open problem in Phys. Rev. A 86, 032315 (2012).
Databáze: OpenAIRE