Non-Maximally Entangled Controlled Teleportation Using Four Particles Cluster States

A new scheme for controlled teleportation with the help of a four-qubit cluster state is proposed. In this scheme, a four-particle cluster state is shared by a sender, a controller and a receiver. The sender first performs a Bell-basis measurement on the qubits at hand, and the controller performs m...

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Bibliographic Details
Published inInternational journal of theoretical physics Vol. 48; no. 5; pp. 1485 - 1490
Main Authors Nie, Yi-You, Hong, Zhi-Hui, Huang, Yi-Bin, Yi, Xiao-Jie, Li, Song-Song
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.05.2009
Subjects
Elementary Particles
Mathematical and Computational Physics
Physics
Physics and Astronomy
Quantum Field Theory
Quantum Physics
Theoretical
Controlled teleportation
Non-maximally entangled state
Cluster state
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Summary:A new scheme for controlled teleportation with the help of a four-qubit cluster state is proposed. In this scheme, a four-particle cluster state is shared by a sender, a controller and a receiver. The sender first performs a Bell-basis measurement on the qubits at hand, and the controller performs measurements under a non-maximally entangled Bell-basis after he knows the sender’s measurement result. Then the receiver introduces an auxiliary qubit and performs some appropriate unitary transformations on his qubits. Quantum teleportation is realized after the receiver performs a local measurement on the auxiliary qubit and an appropriate unitary transformation on his qubit.
ISSN:0020-7748
1572-9575
DOI:10.1007/s10773-008-9920-x