(Louisiana State University) Since the historic finding of gravitational waves from two black holes colliding over a billion light years away was made in 2015, physicists are advancing knowledge about the limits on the precision of the measurements that will help improve the next generation of tools and technology used by gravitational wave scientists. Physicists at Louisiana State University measure quantum “back action” in the audio band at room temperature.

Original source: https://www.eurekalert.org/pub_releases/2019-03/lsu-ltt032519.php