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Controlled Teleportation of an Unknown N -qubit Entangled GHZ State
- Source :
- Communications in Theoretical Physics. 47:1045-1048
- Publication Year :
- 2007
- Publisher :
- IOP Publishing, 2007.
-
Abstract
- A scheme for controlled teleportation of an unknown N-qubit entangled GHZ state from the sender Alice to the distant receiver Bob is proposed. And m-qubit GHZ state is sufficient for the task of control by m spatially-separated supervisors. Conditioned on the local operations executed by all participants, Bob can faithfully restore the original state by performing relevant unitary transformations with the aid of some classical message about measurement results. Anyone's absence will absolutely lead to the failure of teleportation.
- Subjects :
- Computer Science::Emerging Technologies
Greenberger–Horne–Zeilinger state
Physics and Astronomy (miscellaneous)
Computer science
Qubit
Data_CODINGANDINFORMATIONTHEORY
Quantum Physics
State (functional analysis)
Communication source
Topology
Teleportation
Unitary state
Computer Science::Cryptography and Security
Subjects
Details
- ISSN :
- 02536102
- Volume :
- 47
- Database :
- OpenAIRE
- Journal :
- Communications in Theoretical Physics
- Accession number :
- edsair.doi...........61b6b27879101814a8857531ae343bad