http://arxiv.org/abs/2205.08259
It has been theoretically studied that superconductivity (SC) can reflect gravitational wave (GW) in the weak gravitational field limit [1]. Based on the feature, in this article an experimental proposal is raised to probe the expected SC in neutron star by means of GW detection. Two binary systems are considered, neutron star-black hole and binary neutron star systems, with weak gravitational field condition imposed. Non-negligible modulation on the total signal caused by the GW reflection is found, which contributes frequency components different from GW frequency. Correspondingly, in time domain, the modulation leads to fluctuation on the amplitude and phase, increasing with the angular velocity. We show that such modulation signals are detectable by the Cosmic Explorer at $100\,\mbox{Mpc}$. Identification of those signals can evince the existence of the long-sought SC in neutron stars as well as the exotic superconductivity-induced GW reflection.
Y. Gao, J. Yang, Z. Zhu, et. al.
Wed, 18 May 22
57/66
Comments: 5 pages, 7 figures