The Emergence of Classical Hydrodynamics from Quantum Turbulence*

Quantum turbulence is characterized by quantized vortices, which tangle and interact in a "turbulent" manner. This may hold the key to poorly understood phenomena such as pulsar glitches, where the rate of rotation of a spinning neutron star suddenly and inexplicably increases. In this work, we investigate how classical turbulence emerges from the quantum hydrodynamics of superfluids, and consider the role that chaos may play.