Physics – Optics
Scientific paper
2010-02-15
Physics
Optics
8 pages
Scientific paper
The controlled and coherent manipulation of individual quantum systems is a fundamental key for the development of quantum information processing. The nitrogen-vacancy (NV) color center in diamond is a promising system since its photoluminescence is perfectly stable at room temperature and its electron spin can be optically read-out at the individual level. We review here the experiments currently realized in our laboratory, concerning the use of single NV color center as single photon source and the coherent magnetic manipulation of the electron spin associated to a single NV color center. Furthermore, we demonstrate a nanoscopy experiment based on saturation absorption e?ect, which allows to optically pin-point single NV color center at a sub-? resolution. This opens a possibility to independently address two or multiple magnetically-coupled single NV color centers, which is a necessary step toward the realization of a diamond-based quantum computer.
Lai Ngoc Diep
Roch Jean-Francois
Treussart Francois
Zheng Dingwei
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