非传统干涉仪中毫电荷暗物质的探测前景
Detection Prospects of Millicharged Dark Matter in Unconventional Interferometer
AI总结：
本文提出利用非传统激光干涉仪探测地球俘获的毫电荷粒子，通过光子相移测量，在mCPs质量1 GeV至10^12 GeV范围内可将分数电荷灵敏度提升至10^-12至10^-6。
摘要：
我们提出了一种新思路，用于发现地球在其存在期间所俘获的毫电荷粒子（mCPs）。已有研究表明，mCPs在地球内部的积累会使其数密度显著增强，远大于相应的维里密度。我们提出利用一种非传统激光干涉仪，通过探测光子相移来探测这些受地球束缚的mCPs。我们证明，对于质量在$1$ GeV到$10^{12}$ GeV范围内的mCPs，只要其数密度大于$1~\ ext{cm}^{-3}$，探测其分数电荷$ε$的灵敏度可低至$10^{-12}$到$10^{-6}$。
英文摘要：
We propose a novel idea to discover millicharged particles (mCPs) captured by the earth during its existence. It has been demonstrated that the mCPs accumulation inside the earth leads to the enhancement of its number density much larger than the corresponding virial density. We propose to utilize an unconventional laser interferometer to probe these earth-bound mCPs through the detection of the photons's phase shift. We demonstrate that, for mCPs mass in the range between $1$ GeV to $10^{12}$ GeV, the sensitivity of probing their fractional electric charge $ε$ could reach as low as $10^{-12}$ to $10^{-6}$ provided that mCPs number density is greater than $1~\text{cm}^{-3}$.
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