A coherent single-hole spin in a semiconductor.

@article{Brunner2009ACS,
  title={A coherent single-hole spin in a semiconductor.},
  author={Daniel Brunner and Brian D Gerardot and Paul A. Dalgarno and Gunter W{\"u}st and Khaled Karrai and Nick G. Stoltz and Pierre M. Petroff and R. J. Warburton},
  journal={Science},
  year={2009},
  volume={325 5936},
  pages={70-2}
}
Semiconductors have uniquely attractive properties for electronics and photonics. However, it has been difficult to find a highly coherent quantum state in a semiconductor for applications in quantum sensing and quantum information processing. We report coherent population trapping, an optical quantum interference effect, on a single hole. The results demonstrate that a hole spin in a quantum dot is highly coherent. 

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