Speaker
Michael Blake
(MIT)
Description
Rapid progress in calculating out-of-time ordered
correlation functions in holographic theories and solvable
models like the Sachdev-Ye-Kitaev model has led to new
characterisations of chaos in quantum many-body systems.
However, a unified description of this behaviour is so far
lacking. Here I will discuss a recent proposal for an
effective field theory description of chaos in terms of
`quantum hydrodynamics'. In this approach the scrambling of
quantum information (i.e. chaos) arises from interactions
between generic operators and hydrodynamic fluctuations.
