发表刊物：Proceedings of the National Academy of Sciences
关键字：PNAS 122,41, e2512538122(2025) 高灵敏度量子传感器是探索超出标准模型相互作用的理想工具。本文展示了一种工作于共振耦合杂化自旋共振（HSR）模式的原子共磁强计，用于探测宇称破缺、时间反演守恒的相互作用。该杂化自旋共振模式可实现稳定的核 - 电子自旋耦合，在保留无自旋交换弛豫磁强计高灵敏度的同时，提升了测量带宽与系统稳定性。为降低速度调制源带来的振动噪声，我们搭建了多级隔振系统，将振动噪声抑制了 700 倍以上。针对矢量玻色子介导的宇称破缺相互作用，本研究给出了全新约束，实验灵敏度较以往结果提升三个数量级。这批新约束也为标准模型拓展方向的天体物理与实验室研究提供了有效补充。 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.
卷号：122
发布期刊链接：https://www.pnas.org/doi/10.1073/pnas.2512538122