Blog - How Superconductors Can Detect Gravitational Waves

Blog - How Superconductors Can Detect Gravitational Waves: They imagine a bar of superconducting metal being hit by a gravitational wave. The waves act on all masses within the bar but the resulting movement of the metallic lattice, which is bound in place, will be very different from the movement of superconducting electrons, which are entirely unbound and free to move...
Next, they place another superconducting bar at the end of the first but at right angles to it. While the first bar is squeezed by a gravitational wave, the second will be stretched. So the electrons in this bar will oscillate too, albeit shifted by half a period relative to the first.
Finally, if these bars are connected by a superconducting wire, an oscillating current should flow through it.