Direct and Inverse Cascades in Turbulent Bose-Einstein Condensates
Direct and Inverse Cascades in Turbulent Bose-Einstein Condensates
When a Bose-Einstein condensate (BEC) is driven out of equilibrium, density waves interact nonlinearly and trigger turbulent cascades. In a turbulent BEC, energy is transferred toward small scales by a direct cascade, whereas the number of particles displays an inverse cascade toward large scales. In this work, we study analytically …