Journal
PHYSICAL REVIEW LETTERS
Volume 113, Issue 23, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.113.237601
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Funding
- NSF [1005499, 1104718, 1414462]
- DARPA-MTO ORCHID program through Air Force Office of Scientific Research
- Direct For Mathematical & Physical Scien
- Division Of Physics [1005499] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Physics [1414462] Funding Source: National Science Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1104718] Funding Source: National Science Foundation
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We report experimental studies of dressing an electron spin in diamond with resonant and continuous microwave fields to protect the electron spin from magnetic fluctuations induced by the nuclear spin bath. We use optical coherent population trapping (CPT) to probe the energy level structure, optically induced spin transitions, and spin decoherence rates of the dressed spin states. Dressing an electron spin with resonant microwaves at a coupling rate near 1 MHz leads to a 50 times reduction in the linewidth of the spin transition underlying the CPT process, limited by transit-time broadening. Compared with dynamical decoupling, where effects of the bath are averaged out at specific times, the dressed spin state provides a continuous protection from decoherence.
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