On systems of maximal quantum chaos

25.02.2021 14:00 – 15:00

A remarkable feature of chaos in many-body quantum systems is the existence of a bound on the quantum Lyapunov exponent. An important question is to understand what is special about maximally chaotic systems which saturate this bound. Here I will discuss a proposal for a `hydrodynamic' origin of chaos in such systems, and discuss hallmarks of maximally chaotic systems. In particular I will discuss how in maximally chaotic systems there is a suppression of exponential growth in commutator squares of generic few-body operators. This suppression appears to indicate that the nature of operator scrambling in maximally chaotic systems is fundamentally different to scrambling in non-maximally chaotic systems.

Lieu

Zoom meeting

Organisé par

Département de physique théorique

Intervenants

Mike Blake, University of Bristol

entrée libre

Classement

Catégorie: Séminaire

Mots clés: dpt, cordes

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