Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1539864 | Optics Communications | 2008 | 5 Pages |
Abstract
A protocol for three-party controlled quantum teleportation is discussed. It is shown that an unknown two-particle entanglement can be teleported to any one of two receivers via the only one three-particle W state. We summarize all different unitary transformations performed by the receiver with a concise formula. The quantum circuits for the generalized measurement described by positive operator-valued measure (POVM), which is utilized to probabilistically distinguish the two non-orthogonal states, are explicitly constructed by means of quantum Toffoli gates. The efficient quantum circuits for implementing the teleportation are also provided.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Xiu-Bo Chen, Ning Zhang, Song Lin, Qiao-Yan Wen, Fu-Chen Zhu,