An efficient scheme for generalized tripartite controlled teleportation of a two-quNit entangled state
- Resource Type
- Authors
- Hao Yuan; Shou-Hua Shi; Kui Hou; Jing Wang
- Source
- Physica Scripta. 80:015004
- Subject
- Scheme (programming language)
Bell state
Computer science
State (functional analysis)
Condensed Matter Physics
Topology
Teleportation
Atomic and Molecular Physics, and Optics
Greenberger–Horne–Zeilinger state
Control theory
Quantum mechanics
Communication source
computer
Mathematical Physics
computer.programming_language
- Language
- ISSN
- 1402-4896
0031-8949
A scheme for generalized controlled teleportation of an arbitrary two-quNit entangled state with N-dimensional partially Greenberger–Horne–Zeilinger (GHZ) state is proposed. A generalized Bell state measurement (BM) and a single-particle measurement in high dimensions are needed. According to the sender Alice's classical message, the receiver Charlie can restore the unknown two-quNit state with a certain probability by introducing an additional particle and performing a controlled-not (C-NOT) operation on his particles if she cooperates with the controller Bob. The total success probability and classical communication cost are calculated. We also generalize the scheme to the case where there are K controllers. It is shown that any one of the receivers can reconstruct the unknown state if he/she cooperates with all the controllers.