2009
DOI: 10.1038/nature08470
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Preserving electron spin coherence in solids by optimal dynamical decoupling

Abstract: To exploit the quantum coherence of electron spins in solids in future technologies such as quantum computing, it is first vital to overcome the problem of spin decoherence due to their coupling to the noisy environment. Dynamical decoupling, which uses stroboscopic spin flips to give an average coupling to the environment that is effectively zero, is a particularly promising strategy for combating decoherence because it can be naturally integrated with other desired functionalities, such as quantum gates. Err… Show more

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Cited by 372 publications
(376 citation statements)
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“…We show that this spin-bath suppression enhances the efficacy of dynamical decoupling techniques, enabling large values for the multiqubit FOM ~2×10 14 (ms cm − 3 ; compare, for example, to ref. 24, and to the similar FOM obtained with a much higher NV density sample 9 ).…”
supporting
confidence: 79%
“…We show that this spin-bath suppression enhances the efficacy of dynamical decoupling techniques, enabling large values for the multiqubit FOM ~2×10 14 (ms cm − 3 ; compare, for example, to ref. 24, and to the similar FOM obtained with a much higher NV density sample 9 ).…”
supporting
confidence: 79%
“…Relaxation may occur via the transverse and longitudinal relaxation channels characterized by their respective decay times T 2 and T 1 . The transverse dephasing rate G 2 ¼ 1/T 2 is increased by fluctuations at low frequencies (kHz to MHz) and can be monitored using spin echoes or higher order dynamical decoupling microwave control protocols [25][26][27] . The longitudinal relaxation rate G 1 ¼ 1/T 1 describes the population decay of a polarized spin into thermal equilibrium.…”
Section: Nv Relaxometrymentioning
confidence: 99%
“…Theoretical work also predicted much longer coherence times at higher external magnetic fields 13,15 or when using more advanced pulse sequences 16,17 . The classic example is the Carr-Purcell-Meiboom-Gill (CPMG) sequence 1,18 , but several alternatives have recently been developed 19,20 and demonstrated 21,22 . Their performance is expected to improve as more control pulses are added 17 .…”
mentioning
confidence: 99%