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

Nature Communications
Xing RongJiangfeng Du

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 μm. The obtained upper bound of the coupling at 20 μm is [Formula: see text] < 6.24 × 10-15.

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Citations

Apr 17, 2019·Science Advances·Pengfei WangJiangfeng Du
Nov 30, 2019·The Review of Scientific Instruments·Wen-Zhe ZhangJiang-Feng Du
Feb 29, 2020·Physical Review Letters·Yifan ChenYue Zhao
Jan 14, 2021·Nature Communications·E D HerbschlebN Mizuochi
Jul 11, 2021·The Review of Scientific Instruments·Maosen GuoJiangfeng Du
Nov 18, 2021·Science Advances·Haowen SuDmitry Budker

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