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Controlled teleportation against uncooperation of part of supervisors

Authors :
Xin-Wen Wang
Guo-Jian Yang
Yu-Huan Su
Source :
Quantum Information Processing. 8:319-330
Publication Year :
2009
Publisher :
Springer Science and Business Media LLC, 2009.

Abstract

We study the teleportation of an unknown quantum state from a sender (Alice) to a receiver (Bob) via the control of many supervisors (Charlie 1, Charlie 2, . . .) in a network. It has been shown that such a task can be achieved by distributing a GHZ-type entangled state among the participants in advance. In the protocols with GHZ-type entanglement channel, the achievement of teleportation between Alice and Bob is conditioned on the cooperation of all the supervisors. In other words, if anyone of the supervisors does not cooperate, the teleportation will fails. In this paper, we introduce another kind of controlled teleportaton protocol with other types of entangled states acting as the quantum channel, in which the teleportation between Alice and Bob can be realized with high degree of endurance against uncooperation of part of supervisors.

Details

ISSN :
15731332 and 15700755
Volume :
8
Database :
OpenAIRE
Journal :
Quantum Information Processing
Accession number :
edsair.doi...........2c777408f0069722fe580e0aecf7c1af