Quantum-memory-assisted entropic uncertainty relation with a single nitrogen-vacancy center in diamond

Z. Y. Xu; S. Q. Zhu; W. L. Yang

doi:10.1063/1.4771988

Quantum-memory-assisted entropic uncertainty relation with a single nitrogen-vacancy center in diamond

Quantum Physics 2012-12-27 v2

Authors: Z. Y. Xu , S. Q. Zhu , W. L. Yang

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Abstract

The limitation of simultaneous measurements of noncommuting observables can be eliminated when the measured particle is maximally entangled with a quantum memory. We present a proposal for testing this quantum-memory-assisted entropic uncertainty relation in a single nitrogen-vacancy (N-V) center in diamond only by local electronic measurements. As an application, this entropic uncertainty relation is used to witness entanglement between the electron and nuclear spins of the N-V center, which is close to the reach of currently available technology.

Keywords

nitrogen-vacancy centers in diamond color centers in diamond quantum entanglement

Cite

@article{arxiv.1210.0182,
  title  = {Quantum-memory-assisted entropic uncertainty relation with a single nitrogen-vacancy center in diamond},
  author = {Z. Y. Xu and S. Q. Zhu and W. L. Yang},
  journal= {arXiv preprint arXiv:1210.0182},
  year   = {2012}
}

Comments

3 pages, 3 figures, published version

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