Quantum spin control and fast rotation of levitated nanodiamonds in high vacuum
ORAL
Abstract
Levitated diamond particles, combined solid-state spin embedded nitrogen-vacancy (NV) centers, provide a platform to study the spin mechanical hybrid system, and have been proposed for exploring macroscopic quantum mechanics and precision measurements in high vacuum. However, previous works of levitated diamonds are limited by vacuum level and spin state readout. We report experimentally levitated a nanodiamond in high vacuum using a surface ion trap for the first time and measure optically detected magnetic resonance of intrinsic NV centers. The internal temperature of the levitated nanodiamond remains moderate in high vacuum. Impressively, we drive a nanodiamond to rotate up to 20 MHz (1.2 × 109 rpm), surpassing NV center electron spin dephasing rates. Using these NV spins, we observe the pseudo-magnetic field arising from particle rotation. Moreover, we demonstrate quantum coherent control of spins in a rotating nanodiamond. These results mark an important development to study the spin-mechanical coupling, quantum geometric phase, and rotational matter-wave interferometers, expanding our capacity to study quantum phenomenon at macroscopic scales.
*We acknowledge the support from the National Science Foundation under Grant PHY-2110591 and the Office of Naval Research under Grant No. N00014-18-1-2371. This project is also partially supported by the Laboratory Directed Research and Development program at Sandia National Laboratories, a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy's National Nuclear Security Administration under Contract No. DE-NA0003525.
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Publication:1. Y. Jin, K. Shen, P. Ju, X. Gao, C. Zu, A. J. Grine, T. Li. Quantum control and fast rotation of levitated diamonds in high vacuum. arXiv:2309.05821.
