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Room Temperature Electrically Detected Nuclear Spin Coherence of NV Centres in Diamond.

ABSTRACT: We demonstrate electrical detection of the 14N nuclear spin coherence of NV centres at room temperature. Nuclear spins are candidates for quantum memories in quantum-information devices and quantum sensors, and hence the electrical detection of nuclear spin coherence is essential to develop and integrate such quantum devices. In the present study, we used a pulsed electrically detected electron-nuclear double resonance technique to measure the Rabi oscillations and coherence time (T2) of 14N nuclear spins in NV centres at room temperature. We observed T2 ? 0.9?ms at room temperature, however, this result should be taken as a lower limit due to limitations in the longitudinal relaxation time of the NV electron spins. Our results will pave the way for the development of novel electron- and nuclear-spin-based diamond quantum devices.

SUBMITTER: Morishita H

PROVIDER: S-EPMC6972904 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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Room Temperature Electrically Detected Nuclear Spin Coherence of NV Centres in Diamond.

Morishita H H Kobayashi S S Fujiwara M M Kato H H Makino T T Yamasaki S S Mizuochi N N

Scientific reports 20200121 1

We demonstrate electrical detection of the <sup>14</sup>N nuclear spin coherence of NV centres at room temperature. Nuclear spins are candidates for quantum memories in quantum-information devices and quantum sensors, and hence the electrical detection of nuclear spin coherence is essential to develop and integrate such quantum devices. In the present study, we used a pulsed electrically detected electron-nuclear double resonance technique to measure the Rabi oscillations and coherence time (T<s ...[more]

PMID: 31964965

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