Quasiparticle momentum distribution (IMAGE) Penn State Caption New experiments using trapped one-dimensional quantum gases fit with the predictions of the recently developed theory of generalized hydrodynamics. Graph showing the time evolution of the quasiparticle momentum distribution—a property of the atoms in the gases—in a bundle of one-dimensional gases. The experimental data (red lines) nearly perfectly match the predictions of generalized hydrodynamics theory (blue lines). Credit Weiss Laboratory, Penn State Usage Restrictions None. License Original content 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.