Quantum measurement of a rapidly rotating spin qubit in diamond
Alexander A Wood, Emmanuel Lilette, Yaakov Y Fein, Nikolas Tomek, Liam P McGuinness, Lloyd CL Hollenberg, Robert E Scholten, Andy M Martin
Science Advances | American Association for the Advancement of Science | Published : 2018
A controlled qubit in a rotating frame opens new opportunities to probe fundamental quantum physics, such as geometric phases in physically rotating frames, and can potentially enhance detection of magnetic fields. Realizing a single qubit that can be measured and controlled during physical rotation is experimentally challenging. We demonstrate quantum control of a single nitrogen-vacancy (NV) center within a diamond rotated at 200,000 rpm, a rotational period comparable to the NV spin coherence time T2. We stroboscopically image individual NV centers that execute rapid circular motion in addition to rotation and demonstrate preparation, control, and readout of the qubit quantum state with l..View full abstract
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Awarded by Australian Research Council Discovery Scheme
A.M.M. would like to thank the Institute of Advanced Study (Durham University, UK) for hosting him during the preparation of this manuscript. This work was supported by the Australian Research Council Discovery Scheme (DP150101704). L.P.M. acknowledges funding from the DAAD P.R.I.M.E fellowship.