期刊
PHYSICS LETTERS A
卷 374, 期 9, 页码 1121-1125出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physleta.2009.12.070
关键词
Path-spin entangled state; Information transfer
资金
- DST [SR/S2/PU-16/2007]
The path-spin entangled state of a single spin-1/2 particle is considered which is generated by using a beam-spitter and a spin-flipper. Using this hybrid entanglement at the level of a single particle as a resource, we formulate a protocol for transferring of the state of an unknown qubit to a distant location. Our scheme is implemented by a sequence of unitary operations along with suitable spin-measurements, as well as by using classical communication between the two spatially separated parties. This protocol, thus, demonstrates the possibility of using intraparticle entanglement as a physical resource for performing information theoretic tasks. (C) 2010 Elsevier B.V. All rights reserved.
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