Copenhagen researchers break quantum limit in precision of force and position measurements

Researchers of the Schliesser Lab at the Niels Bohr Institute, University of Copenhagen, have pushed the precision of force and position measurements into a new regime. Their experiment is the first to surpass the so-called ‘Standard Quantum Limit,’ or SQL, which arises in the most common (and successful) optical techniques for ultra-precise position measurements. The result and underlying experiment have potential implications for gravitational wave astronomy techniques, as well as force microscopy with biological applications.
Source: EurekaAlert, https://www.eurekalert.org