2012
DOI: 10.1103/physrevb.85.155204
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Comparison of dynamical decoupling protocols for a nitrogen-vacancy center in diamond

Abstract: We perform a detailed theoretical-experimental study of the dynamical decoupling (DD) of the nitrogenvacancy (NV) center in diamond. We investigate the DD sequences applied to suppress the dephasing of the electron spin of the NV center induced by the coupling to a spin bath composed of the substitutional nitrogen atoms. The decoupling efficiency of various DD schemes is studied, including both periodic and aperiodic pulse sequences. For ideal control pulses, we find that the DD protocols with the Carr-Purcell… Show more

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Cited by 102 publications
(124 citation statements)
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References 110 publications
(216 reference statements)
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“…This comparison shows that the decay rate is diminished by a large factor ω 2 , although achieved due to constant application of strong driving to the central spin. For realistic parameters 42 , b = 3.6 µs −1 and h = 2π × 8 MHz, the rotary echo decay time survives longer by a factor of about ω 2 ∼ 100. In realistic experiments, on such time scales the decay of the NV spins would be probably dominated by other relaxation mechanisms.…”
Section: Discussionmentioning
confidence: 99%
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“…This comparison shows that the decay rate is diminished by a large factor ω 2 , although achieved due to constant application of strong driving to the central spin. For realistic parameters 42 , b = 3.6 µs −1 and h = 2π × 8 MHz, the rotary echo decay time survives longer by a factor of about ω 2 ∼ 100. In realistic experiments, on such time scales the decay of the NV spins would be probably dominated by other relaxation mechanisms.…”
Section: Discussionmentioning
confidence: 99%
“…However, the mutual flip-flops between the N spins are generally allowed, and lead to fluctuations of the dipolar field created by the spin bath on the NV center. Since the long-range dipolar interaction couples each N spin to hundreds of other N spins and only to one NV center, and all the couplings are comparable, dynamics of the flip-flops is barely affected by the state of the NV center (negligible backaction) 11,39,42,47,50 . Such a bath can be described in a mean-field manner, as a random time-varying magnetic field B(t) acting on the NV spin, in a spirit of earlier works on magnetic resonance [70][71][72][73] .…”
Section: Nv Center Coupled To the Dilute Spin Bathmentioning
confidence: 99%
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