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arXiv · 1409.3786

Protecting a solid-state spin from decoherence using dressed spin states

D. Andrew Golter·Thomas K. Baldwin·Hailin Wang
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Abstract

Dressed spin states, a spin coupling to continuous radiation fields, can fundamentally change how a spin responds to magnetic fluctuations. Using dressed spin states, we were able to protect an electron spin in diamond from decoherence. Dressing a spin with resonant microwaves at a coupling rate near 1 MHz leads to a 50 times reduction in the linewidth of the spin transition, limited by transit-time broadening. The spin decoherence and the energy level structure of the dressed states were probed with optical coherent-population-trapping processes. Compared with dynamical decoupling, where effects of the bath are averaged out at specific times, the dressed state provides a continuous protection from decoherence.

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D. Andrew Golter, Thomas K. Baldwin, Hailin Wang. 2014-09-12. Protecting a solid-state spin from decoherence using dressed spin states. https://doi.org/10.1103/physrevlett.113.237601

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