Probabilistic Controlled Teleportation of a Triplet W State
| Autor: | Zhu Shi-Qun, Fang Jian-Xing, Jiang Wei-Xing, Sha Jin-Qiao |
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| Rok vydání: | 2007 |
| Předmět: |
Computer science
Probabilistic logic General Physics and Astronomy Data_CODINGANDINFORMATIONTHEORY Quantum Physics State (functional analysis) Topology Unitary state Teleportation symbols.namesake Computer Science::Emerging Technologies Greenberger–Horne–Zeilinger state Quantum mechanics Qubit symbols W state Computer Science::Cryptography and Security Von Neumann architecture |
| Zdroj: | Chinese Physics Letters. 24:1144-1146 |
| ISSN: | 1741-3540 0256-307X |
| DOI: | 10.1088/0256-307x/24/5/005 |
| Popis: | A scheme for probabilistic controlled teleportation of a triplet W state from the sender Alice to the distant receiver Bob is proposed. In this scheme, an m-qubit GHZ state serves as the control parameter. The m control qubits are shared by m(s1,s2. . .sm) spatially-separated supervisors. With the aid of local operations and individual measurements, including Bell-state measurement, Von Neumann measurement, and mutual classical communication, etc., Bob can faithfully reconstruct the original state by performing relevant unitary transformations. However, even if one participant does not cooperate during the process, the receiver Bob cannot fully recover the original state. This protocol can be extended to probabilistic controlled teleportation of an arbitrary N-qubit state and some other N-qubit entangled states. |
| Databáze: | OpenAIRE |
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