Physics – Quantum Physics
Scientific paper
2005-03-04
Physica A: Statistical Mechanics and its Applications, Volume 366, 1 July 2006, Pages 243-249
Physics
Quantum Physics
5 pages, no figure
Scientific paper
10.1016/j.physa.2005.10.043
Using the highly detuned interaction between three-level $\Lambda$-type atoms and coherent optical fields, we can realize the C-NOT gates from atoms to atoms, optical fields to optical fields, atoms to optical fields and optical fields to atoms. Based on the realization of the C-NOT gates we propose an entanglement purification scheme to purify a mixed entangled states of coherent optical fields. The simplicity of the current scheme makes it possible that it will be implemented in experiment in the near future.
Cao Zhuo-Liang
Yang Ming
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