Room Temperature Electrically Detected Nuclear Spin Coherence of NV Centers in Diamond

2018/03/03 by Morishita, Hiroki, Kobayashi, Satoshi, Fujiwara, Masanori +4
#FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Quantum Physics (quant-ph)

paper · doi:10.48550/arxiv.1803.01161

Abstract

We demonstrate electrical detection of the ¹⁴N nuclear spin coherence of NV centers 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 centers at room temperature. We observed T₂ ≈ 0.9 ms at room temperature. Our results will pave the way for the development of novel electron- and nuclear-spin-based diamond quantum devices.

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