DC SQUID as a sensitive detector of dark matter

Bartłomiej Kiczek, Marek Rogatko, Karol I. Wysokinski

Published 2019-04-01Version 1

The gauge-gravity duality has been applied to examine the properties of holographic superconducting quantum device (SQUID), composed of two S-N-S Josephson junctions, influenced by dark matter sector modeled by the auxiliary $U(1)$-gauge field coupled to the ordinary Maxwell one. The dark matter sector is known to affect the properties of superconductor and is expected to enter the current-phase relation. While the single junctions between two superconductors turn out to be very weakly sensitive to the presence of dark matter sector, the results obtained for the SQUID are encouraging. We find that the analyzed properties of the device may be used in the future experiments aimed at the detection of the dark sector of our Universe.