论文标题
用声子偏振子和镁质的轴轴线可检测性
Detectability of Axion Dark Matter with Phonon Polaritons and Magnons
论文作者
论文摘要
最近，已提出了凝聚态物质系统中的集体激发，例如声子和镁元素，作为轻质暗物质的新型检测通道。我们表明，i）在$ {\ Mathcal O} $（1 t）磁场（通过轴突 - 光子耦合）中的极地材料中的光学声子极化子和ii）在磁有序的材料中散布木元（通过轴线风耦合到电子群体上），可以覆盖难度的零售量$} $ {\ Math C $} $} $} $} $} $（暴露于公斤的暗物质。寻找具有大量光学声子或磁子模式的材料至关重要，这表明一个程序来搜索具有不同谐振能量和激发选择规则的一系列材料；我们概述了规则，并讨论了一些候选目标，为将来的工作提供了更详尽的搜索。单个光子，声子和木核检测器的持续开发将为实验实现此处介绍的想法提供关键。
Collective excitations in condensed matter systems, such as phonons and magnons, have recently been proposed as novel detection channels for light dark matter. We show that excitation of i) optical phonon polaritons in polar materials in an ${\mathcal O}$(1 T) magnetic field (via the axion-photon coupling), and ii) gapped magnons in magnetically ordered materials (via the axion wind coupling to the electron spin), can cover the difficult-to-reach ${\mathcal O}$(1-100) meV mass window of QCD axion dark matter with less than a kilogram-year exposure. Finding materials with a large number of optical phonon or magnon modes that can couple to the axion field is crucial, suggesting a program to search for a range of materials with different resonant energies and excitation selection rules; we outline the rules and discuss a few candidate targets, leaving a more exhaustive search for future work. Ongoing development of single photon, phonon and magnon detectors will provide the key for experimentally realizing the ideas presented here.
