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arXiv · 1309.4530

Suppression of electron spin decoherence of the diamond NV center by a transverse magnetic field

Chang S. Shin·Claudia E. Avalos·Mark C. Butler·Hai-Jing Wang·Scott J. Seltzer·Ren-Bao Liu·Alexander Pines·Vikram S. Bajaj
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Abstract

We demonstrate that the spin decoherence of nitrogen vacancy (NV) centers in diamond can be suppressed by a transverse magnetic field if the electron spin bath is the primary decoherence source. The NV spin coherence, created in "a decoherence-free subspace" is protected by the transverse component of the zero-field splitting, increasing the spin-coherence time about twofold. The decoherence due to the electron spin bath is also suppressed at magnetic fields stronger than ~25 gauss when applied parallel to the NV symmetry axis. Our method can be used to extend the spin-coherence time of similar spin systems for applications in quantum computing, field sensing, and other metrologies.

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Chang S. Shin, Claudia E. Avalos, Mark C. Butler, Hai-Jing Wang, Scott J. Seltzer, Ren-Bao Liu, Alexander Pines, Vikram S. Bajaj. 2013-09-18. Suppression of electron spin decoherence of the diamond NV center by a transverse magnetic field. https://doi.org/10.1103/physrevb.88.161412

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