Preparation of spin squeezed state in SiV centers coupled by diamond waveguide
Yong-Hong Ma(马永红)1,†, Yuan Xu(许媛)1, Quan-Zhen Ding(丁全振)2, and Yu-Sui Chen(陈予遂)3,‡
1 School of Science, Inner Mongolia University of Science and Technology, Baotou 014010, China; 2 Department of Physics, and Center for Quantum Science and Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA; 3 Department of Physics, New York Institute of Technology, Old Westbury, NY 11568, USA
Abstract Spin squeezing is a fascinating manifestation of many-particle entanglement and one of the most promising quantum resources. In this paper, we propose a novel realization of a solid-state quantum spin squeezing by applying SiV centers embedded in a diamond waveguide with the help of a microwave field. The phenomena about the generation of spin squeezing are analyzed numerically in Markovian environments. Our analysis shows that spin squeezing can be generated with the microwave field's help under some realistic conditions, despite the presence of dephasing and mechanical damping. This solid-state spin squeezing based on SiV centers in diamonds might be applied to magnetometers, interferometry, and other precise measurements.
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11664029) and the Inner Mongolia Natural Science Foundation, China (Grant No. 2021MS01012).
Yong-Hong Ma(马永红), Yuan Xu(许媛), Quan-Zhen Ding(丁全振), and Yu-Sui Chen(陈予遂) Preparation of spin squeezed state in SiV centers coupled by diamond waveguide 2021 Chin. Phys. B 30 100311
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