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Efficient scheme for realizing quantum dense coding with GHZ state in separated low-Q cavities
- Source :
- Chinese Physics B. 23:060305
- Publication Year :
- 2014
- Publisher :
- IOP Publishing, 2014.
-
Abstract
- We propose an efficient scheme for realizing quantum dense coding with three-particle GHZ state in separated low-Q cavities. In this paper, the GHZ state is first prepared with three atoms trapped, respectively, in three spatial separated cavities. Meanwhile, with the assistance of a coherent optical pulse and X-quadrature homodyne measurement, we can implement quantum dense coding with three-particle GHZ state with a higher probability. Our scheme can also be generalized to realize N-particle quantum dense coding.
Details
- ISSN :
- 16741056
- Volume :
- 23
- Database :
- OpenAIRE
- Journal :
- Chinese Physics B
- Accession number :
- edsair.doi...........1a840d23c944a48a8e31ddb11f36a094