Bulletin of the American Physical Society
Spring 2021 Meeting of the APS New England Section
Volume 66, Number 4
Friday–Saturday, April 16–17, 2021; Virtual; Eastern Daylight Time
Session B05: Invited Talk IV |
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Chair: Richard Price, MIT |
Saturday, April 17, 2021 1:36PM - 2:06PM |
B05.00001: Microwave readout of solid-state spin ensembles Invited Speaker: Danielle Braje Defects in solids have emerged as a promising platform for quantum information science. Leading candidates, such as nitrogen-vacancy color center in diamond, can be initialized into pure quantum states, can be coherently controlled, and can have relatively long-lived quantum coherence at room temperature. While high-fidelity state readout has been achieved for single spins, the techniques are not generalizable to ensembles of spins. This talk describes a novel, non-optical readout technique, which relies on microwave-accessible transitions. By coupling ensembles of spins to a microwave cavity, significant enhancement of the state-dependent dispersive shift produced by the ensemble is realized. We demonstrate this technique by employing an ensemble of nitrogen vacancy centers for magnetometry, achieving a sensitivity unconstrained by optical photon shot noise. In addition, we show this technique extends beyond diamond, paving the way for high-fidelity readout at room temperature. [Preview Abstract] |
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