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arXiv · 1210.0182

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

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.

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Z. Y. Xu, S. Q. Zhu, W. L. Yang. 2012-12-22. Quantum-memory-assisted entropic uncertainty relation with a single nitrogen-vacancy center in diamond. https://doi.org/10.1063/1.4771988

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