Fig. 1 (IMAGE) University of Vienna Caption Scientific illustration of the experiment where two particles in two laser beams are coupled nonreciprocally through light scattered between them. This interaction makes them move along specific orbits such that the particles follow each other (the yellow circles are the experimental records of the motion of each particle). Credit Equinox Graphics Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.