论文标题
一种用圆柱超导体检测轴的新方法
A New Method for Detecting Axion With Cylindrical Superconductor
论文作者
论文摘要
我们提出了一种搜索轴突 - 光子转换中暗物质轴的方法。我们考虑在强磁场下圆柱形的超导体。暗物质轴轴产生振荡电场，从而在超导体表面诱导振荡的超导电流。电流引起偶极辐射，并带有Axion Mass $ M_A $给出的频率$ M_A/2π$。我们表明，在磁场下，电流产生的辐射通量为$ 10^{ - 18} $ W，在Radius $ \ sim 1 $ cm和长度$ \ sim 10 $ cm的圆柱超级导体的情况下。 ％的超导电流在表面上流到深度$λ\ simeq 5 \ times 10^{ - 6} $ cm。出现大量辐射通量是因为库珀对具有较大的数量密度（$ \ sim 10^{22}/\ rm cm^{3} $）。凭借高检测灵敏度，我们可以通过现有射电望远镜同时搜索射频的宽带宽度。
We propose a method for searching dark matter axion in axion-photon conversion. We consider a superconductor of cylindrical shape under strong magnetic field. The dark matter axion generates oscillating electric field which induces oscillating superconducting current in the surface of the superconductor. The current gives rise to dipole radiation with the frequency $m_a/2π$ given by axion mass $m_a$. We show that the radiation flux generated by the current is of the order of $10^{-18}$W under magnetic field $\sim 3$T in the case of radius $\sim 1$cm and length $\sim 10$cm of the cylindrical superconductor. %The superconducting current flows in the surface to the depth $λ\simeq 5\times 10^{-6}$cm. The large amount of the radiation flux arises because Cooper pairs with large number density ( $\sim 10^{22}/\rm cm^{3}$ ) is present in the superconductor. With the high detection sensitivity, we can simultaneously search wide bandwidth of the radio frequency with existing radio telescope.
