Title | ||
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Remote information concentration via w W state: Reverse of ancilla-free phase-covariant telecloning |
Abstract | ||
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In this paper, we investigate generalized remote information concentration as the reverse process of ancilla-free phase-covariant telecloning (AFPCT) which is different from the reverse process of optimal universal telecloning. It is shown that the quantum information via → 1 → 2 AEPCT procedure can be remotely concentrated back to a single qubit with a certain probability by utilizing (non-)maximally entangled w W states as quantum channels. Our protocols are the generalization of Wang's scheme (Open J Microphys 3:18-21. doi: 10.4236/ojm.2013.31004, 2013). And von Neumann measure and positive operator-valued measurement are performed in the maximal and non-maximal cases respectively. Relatively the former, the dimension of measurement space in the latter is greatly reduced. It makes the physical realization easier and suitable. © 2013 Springer Science+Business Media New York. |
Year | DOI | Venue |
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2013 | 10.1007/s11128-013-0613-x | Quantum Information Processing |
Keywords | DocType | Volume |
Ancilla-free phase-covariant teleclong,Nonmaximally entangled w W state,POVM,Projective measurement,Remote information concentration,Three-qubit asymmetric entangled w W | Journal | 12 |
Issue | ISSN | Citations |
11 | null | 1 |
PageRank | References | Authors |
0.44 | 1 | 3 |
Name | Order | Citations | PageRank |
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Jiayin Peng | 1 | 22 | 6.34 |
Mingqiang Bai | 2 | 6 | 3.08 |
Zhiwen Mo | 3 | 100 | 19.48 |