A new approach to ultrasensitive gravitational wave detection
  We suggest here a method to detect gravitational waves (GW) different from the interferometric approach. It is based on two critical steps: conversion of the GW action into rotational motion and subsequent conversion into electric current. The ability to detect extremely tiny currents empowers this suggested approach in which the gravitational wave moves charges around closed loops. This new method may allow detection of gravitational waves with strain sensitivities beyond the reach of the interferometric approaches. 
A. Gulian, J. Foreman, V. Nikoghosyan, L. Sica, J. Tollaksen, S.   Nussinov
gr-qc cond-mat.supr-con physics.ins-det