http://arxiv.org/abs/1911.09850
We propose a class of new possibilities for the search of axion-like particles (ALPs) by using time series data of the polarization angle of the light. If the condensation of an ALP plays the role of dark matter, the polarization plane of the light oscillates during the propagation through the condensation of the ALP. Thus, we may be able to detect the signal of the ALP by continuously observing the polarization plane. We study the sensitivities of the ALP search of this class, paying particular attention to the light coming from astrophysical sources such as protoplanetary disks, supernova remnants, the foreground emission of the cosmic microwave background, and so on. We show that, for the ALP mass of $\sim 10^{-22}$–$10^{-19}\ {\rm eV}$, the ALP search of our proposal may reach the parameter region which is unexplored by other searches yet.
S. Chigusa, T. Moroi and K. Nakayama
Mon, 25 Nov 19
21/55
Comments: 17 pages, 1 figure
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