All articles tagged with #quantum turbulence
Physicists have observed the quantum Kelvin-Helmholtz instability in superfluid lithium gases, revealing exotic crescent-shaped vortices called eccentric fractional skyrmions, which resemble patterns in Van Gogh's 'Starry Night' and could impact future quantum technologies and our understanding of topological phenomena.
Researchers from Lancaster University and Aalto University have demonstrated the dissipation of energy in quantum turbulence, providing insights into turbulence across various scales. The team's findings demonstrate a new understanding of how wave-like motion transfers energy from macroscopic to microscopic length scales, and their results confirm a theoretical prediction about how the energy is dissipated at small scales. The discovery could become a cornerstone of the physics of large quantum systems and could lead to improved engineering in domains where the flow and behaviour of fluids and gases like water and air is a key question.
Researchers at Aalto University have studied turbulence in the Helium-3 isotope in a unique, rotating ultra-low temperature refrigerator and found that Kelvin waves act on individual vortices by continually pushing energy to smaller and smaller scales, ultimately leading to the scale at which dissipation of energy takes place. This new understanding of how wave-like motion transfers energy from macroscopic to microscopic length scales could lead to improved engineering in domains where the flow and behavior of fluids and gases like water and air is a key question.