Highly efficient remote preparation of an arbitrary three-qubit state via a four-qubit cluster state and an EPR state
| Autor: | Zhang-Yin Wang |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Discrete mathematics
Physics Basis (linear algebra) Cluster state Law of total probability Statistical and Nonlinear Physics Quantum Physics State (functional analysis) Theoretical Computer Science Electronic Optical and Magnetic Materials Modeling and Simulation Qubit Signal Processing Electrical and Electronic Engineering Unit (ring theory) Quantum Quantum computer |
| Zdroj: | Quantum Information Processing. 12:1321-1334 |
| ISSN: | 1573-1332 1570-0755 |
| DOI: | 10.1007/s11128-012-0474-8 |
| Popis: | An efficient protocol for remotely preparing an arbitrary three-qubit state is devised with a four-qubit cluster state and an Einstein---Podolsky---Rosen state as the shared quantum resource. Using an appropriate set of eight-qubit mutually orthogonal measurement basis, the remote three-qubit preparation is successfully completed with the probability of $${\frac{1}{8}}$$ in general case. Then to achieve our concerns of improving the probability of this protocol, some special ensembles of three-qubit states are minutely investigated. As a result, it is shown that the total probability of the RSP protocol, in these particular cases, can be improved to $${\frac{1}{4}}$$ and $${\frac{1}{2}}$$ , respectively, or even that the RSP protocol can be realized with unit success probability. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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