Levitation and quantum control of a fast nanodiamond rotor in high vacuum

Kunhong Shen; Yuanbin Jin; Xingyu Gao; Peng Ju; Tongcang Li

doi:10.1117/12.2676771

5 October 2023 Levitation and quantum control of a fast nanodiamond rotor in high vacuum

Kunhong Shen, Yuanbin Jin, Xingyu Gao, Peng Ju, Tongcang Li

Proceedings Volume PC12649, Optical Trapping and Optical Micromanipulation XX; PC126491N (2023) https://doi.org/10.1117/12.2676771
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Conference Poster

Abstract

Trapping a diamond particle at high vacuum is a challenge due to impurities that absorb photons and cause heating. The heating is evitable due to the necessity of laser usage for initialization and readout of the Nitrogen-Vacancy (NV) centers. Here, we demonstrate a method to launch, select, and trap a diamond at high vacuum using a surface Paul trap without too much heating. By carefully adjusting the probe laser power, the internal temperature is even lower than 350 K in high vacuum. In addition, we electrically drive the nanodiamond to rotate at a high angular velocity (up to 20 MHz). Microwave is applied for driving the electronic states of the NV center through a homemade bias-tee. We manage to trap a diamond and measure an Optically Detected Magnetic Resonance (ODMR) at a pressure of 10^-6 Torr which is limited by the setup. Our work is helpful for studying the spin-mechanical coupling and may provide an opportunity for the realization of quantum superposition at macroscopic scales.

Citation Download Citation

Kunhong Shen, Yuanbin Jin, Xingyu Gao, Peng Ju, and Tongcang Li "Levitation and quantum control of a fast nanodiamond rotor in high vacuum", Proc. SPIE PC12649, Optical Trapping and Optical Micromanipulation XX, PC126491N (5 October 2023); https://doi.org/10.1117/12.2676771

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