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Searching for an exotic spin-dependent interaction with a single electron-spin quantum sensor.


ABSTRACT: Searching for new particles beyond the standard model is crucial for understanding several fundamental conundrums in physics and astrophysics. Several hypothetical particles can mediate exotic spin-dependent interactions between ordinary fermions, which enable laboratory searches via the detection of the interactions. Most laboratory searches utilize a macroscopic source and detector, thus allowing the detection of interactions with submillimeter force range and above. It remains a challenge to detect the interactions at shorter force ranges. Here we propose and demonstrate that a near-surface nitrogen-vacancy center in diamond can be utilized as a quantum sensor to detect the monopole-dipole interaction between an electron spin and nucleons. Our result sets a constraint for the electron-nucleon coupling, [Formula: see text], with the force range 0.1-23??m. The obtained upper bound of the coupling at 20??m is [Formula: see text]?

SUBMITTER: Rong X 

PROVIDER: S-EPMC5821819 | biostudies-other | 2018 Feb

REPOSITORIES: biostudies-other

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Searching for an exotic spin-dependent interaction with a single electron-spin quantum sensor.

Rong Xing X   Wang Mengqi M   Geng Jianpei J   Qin Xi X   Guo Maosen M   Jiao Man M   Xie Yijin Y   Wang Pengfei P   Huang Pu P   Shi Fazhan F   Cai Yi-Fu YF   Zou Chongwen C   Du Jiangfeng J  

Nature communications 20180221 1


Searching for new particles beyond the standard model is crucial for understanding several fundamental conundrums in physics and astrophysics. Several hypothetical particles can mediate exotic spin-dependent interactions between ordinary fermions, which enable laboratory searches via the detection of the interactions. Most laboratory searches utilize a macroscopic source and detector, thus allowing the detection of interactions with submillimeter force range and above. It remains a challenge to  ...[more]

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