Axion/hidden-photon dark matter conversion into condensed matter axion
Axion/hidden-photon dark matter conversion into condensed matter axion
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DOI：
10.1007/jhep08(2021)074
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发表时间：
2021-02
影响因子：
5.4
通讯作者：
So Chigusa;T. Moroi;K. Nakayama
中科院分区：
文献类型：
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作者：
So Chigusa;T. Moroi;K. Nakayama
QCD轴子或类轴子粒子是宇宙暗物质的候选者。另一方面，在某些凝聚态系统中存在类轴子激发，这意味着暗物质粒子可以与凝聚态物质轴子发生相互作用。在量子水平上讨论了反铁磁绝缘体中凝聚态轴子与集体自旋波激发之间的关系。为了发现暗物质信号，估计了暗物质，如基本粒子轴子或隐藏光子到凝聚态物质轴子的转化率。
The QCD axion or axion-like particles are candidates of dark matter of the universe. On the other hand, axion-like excitations exist in certain condensed matter systems, which implies that there can be interactions of dark matter particles with condensed matter axions. We discuss the relationship between the condensed matter axion and a collective spin-wave excitation in an anti-ferromagnetic insulator at the quantum level. The conversion rate of the light dark matter, such as the elementary particle axion or hidden photon, into the condensed matter axion is estimated for the discovery of the dark matter signals.