Search for a parity-violating long-range spin-dependent interaction

作者：Xing Heng, Zitong Xu, Xiaofei Huang, Dinghui Gong, Guoqing Tian, Wei Ji, Jiancheng Fang, Dmitry Budker, Kai Wei · 发表于：Proceedings of the National Academy of Sciences · 年份：2025 · DOI：10.1073/pnas.2512538122 · 被引用次数：4 · 研究领域：Atomic and Subatomic Physics Research、Advanced Frequency and Time Standards、Cold Atom Physics and Bose-Einstein Condensates

High-sensitivity quantum sensors are a promising tool for experimental searches for beyond-Standard-Model interactions. Here, we demonstrate an atomic comagnetometer operating under a resonantly-coupled hybrid spin-resonance (HSR) regime to probe P-odd, T-even interactions. The HSR regime enables robust nuclear-electron spin coupling, enhancing measurement bandwidth and stability without compromising the high sensitivity of spin-exchange relaxation-free magnetometers. To minimize vibration-related noise from velocity-modulated sources, we implement a multistage vibration isolation system, achieving a vibration-related noise reduction exceeding 700-fold. We establish new constraints on vector-boson-mediated parity-violating interactions, improving experimental sensitivity by three orders of magnitude compared to previous limits. The new constraints complement existing astrophysical and laboratory studies of potential extensions to the Standard Model.