Josephson detector of gravitational waves: non-formal consequence of formal analogy: critical wave length - critical current

Zherikhina L.N., Petrova M.G., Tskhovrebov A.M.

P.N.Lebedev Physical Institute of the RAS, Moscow, Russia;

E-mail: Izmailov gizmailov@mail.ru

The DC-SQUID as the gravitational wave detector is offered. It is proposed to use the Josephson tunneling, and register a broadening of the gap between the superconducting needle and the plate rigidly connected with a transducer. For supersensitivity the suggested increasing of steepness for the dependence between Josephson inductance – current when the external current approaches the critical value is noted. Some estimates of its sensitivity on amplitude for 1 GHz range wave frequency is presented.

Keywords: gravitational waves, SQUID, interferometric detectors.

DOI: 10.18698/2309-7604-2015-1-577-580

Article file: Zherikhina2.pdf