Axion Wind Detection with the Homogeneous Precession Domain of Superfluid Helium-3
Axion Wind Detection with the Homogeneous Precession Domain of Superfluid Helium-3
复制标题
利用超流 Helium-3 的均匀进动域进行轴子风探测
DOI：
10.1103/physrevlett.129.211801
复制
发表时间：
2022
影响因子：
8.6
通讯作者：
Scott, John William
中科院分区：
文献类型：
--
作者：
Gao, Christina;Halperin, William;Kahn, Yonatan;Nguyen, Man;Schütte-Engel, Jan;Scott, John William
轴子和类轴子粒子可能会像一个弱振荡的有效磁场一样耦合到核自旋，即“轴子风”。现有的探测由暗物质引起的轴子风的建议利用了核磁共振（NMR）的类比，旨在探测当轴子风共振地使极化材料样品中的旋进自旋倾斜时产生的小横向场。我们描述了一个新的建议，使用超流体的均匀进动域作为检测介质，其中的轴子风的影响是一个小的位移的大振幅NMR信号的进动频率。我们认为，这种设置可以同时提供多个轴子质量的宽带检测，并具有竞争力的灵敏度，其他轴子风实验，如CASPEr风在质量低于利用精密频率计量在读出阶段。
Axions and axionlike particles may couple to nuclear spins like a weak oscillating effective magnetic field, the “axion wind.” Existing proposals for detecting the axion wind sourced by dark matter exploit analogies to nuclear magnetic resonance (NMR) and aim to detect the small transverse field generated when the axion wind resonantly tips the precessing spins in a polarized sample of material. We describe a new proposal using the homogeneous precession domain of superfluidas the detection medium, where the effect of the axion wind is a small shift in the precession frequency of a large-amplitude NMR signal. We argue that this setup can provide broadband detection of multiple axion masses simultaneously and has competitive sensitivity to other axion wind experiments such as CASPEr-Wind at masses belowby exploiting precision frequency metrology in the readout stage.