Improved Scheme for Probabilistic Transformation and Teleportation of Multi-Particle Quantum States

In most probabilistic teleportation schemes, if the teleportation fails, the unknown quantum state will be completely ruined. In addition, the frequently proposed high-dimensional unitary operations are very difficult to realize experimentally. To maintain the integrity of the unknown quantum state...

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Bibliographic Details
Published in:Tsinghua science and technology 2009-12, Vol.14 (6), p.735-738
Main Author: 姜敏 张曾科 李向旭 李慧
Format: Article
Language:English
Subjects:
auxiliary particle
Bell-state measurement
multi-particle state
probabilistic teleportation
quantum state transfer
standard method
传输方案
多粒子
辅助粒子
远距离传输
量子态
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Summary:In most probabilistic teleportation schemes, if the teleportation fails, the unknown quantum state will be completely ruined. In addition, the frequently proposed high-dimensional unitary operations are very difficult to realize experimentally. To maintain the integrity of the unknown quantum state to be teleported, this analysis does not focus attention on the original multi-particle state but seeks to construct a faithful channel with an ancillary particle and a unified high-dimensional unitary operation. The result shows that if the construction of the multi-group Einstein-Podolsky-Rosen pair succeeds, the original multi-particle state can be used to deterministically teleport the unknown quantum state of the entangled multiple particles which avoids undermining the integrity of the unknown state brought about by failure. This unified high-dimensional operation is appealing due to the obvious experimental convenience.
ISSN:1007-0214
1878-7606
1007-0214
DOI:10.1016/S1007-0214(09)70143-9