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- Title
SCHEME FOR IMPLEMENTING ASSISTED CLONING OF AN UNKNOWN TWO-PARTICLE ENTANGLED STATE VIA CLUSTER STATE.
- Authors
MA, PENG-CHENG; ZHAN, YOU-BANG; ZHANG, LING-LING
- Abstract
We present a scheme that can realize quantum cloning of an unknown two-particle entangled state and its orthogonal-complement state with assistance offered by a state preparer, via entangled cluster state as quantum channel. The first stage of the scheme requires usual teleportation via a maximally four-particle entangled cluster state as quantum channel. In the second stage of the scheme, with the assistance (through a two-particle projective measurement) of the preparer, the perfect copies and complement copies of an unknown two-particle entangled state can be obtained. We also put forward a scheme for the teleportation by using nonmaximally entangled quantum channel. The clones and complement clones of unknown state can be produced with certain probability in the latter scheme.
- Subjects
CLUSTER analysis (Statistics); QUANTUM theory; CLONING; ORTHOGONAL functions; PROBABILITY theory; GENETIC engineering
- Publication
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 2009, Vol 23, Issue 15, p3231
- ISSN
0217-9792
- Publication type
Article
- DOI
10.1142/S0217979209052534