Preparation of spin squeezed state in SiV centers coupled by diamond waveguide  

作　　者：Yong-Hong Ma Yuan Xu Quan-Zhen Ding Yu-Sui Chen 马永红;许媛;丁全振;陈予遂(School of Science,Inner Mongolia University of Science and Technology,Baotou 014010,China;Department of Physics,and Center for Quantum Science and Engineering,Stevens Institute of Technology,Hoboken,NJ 07030,USA;Department of Physics,New York Institute of Technology,Old Westbury,NY 11568,USA)

机构地区：[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

出　　处：《Chinese Physics B》2021年第10期165-170,共6页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.11664029);the Inner Mongolia Natural Science Foundation,China(Grant No.2021MS01012).

摘　　要：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.

关 键 词：spin squeezed state SiV center diamond waveguide 

分 类 号：TQ163[化学工程—高温制品工业] O469[理学—凝聚态物理]