Hydrodynamics and Chaos in Quantum Matter

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• Mike Blake (Bristol)
• Thursday 12 March 2020, 13:15-14:45
• Theory Library.

If you have a question about this talk, please contact Dr Hannah Price.

Note the new time for Theory seminars this term

In this talk I will discuss how studies of holographic theories have led to the discovery of new connections between hydrodynamics and chaos in quantum many-body systems. In the first half of this talk I will describe evidence for a surprising relationship between the energy diffusion constant of strongly interacting theories and the butterfly velocity, which describes the speed at which many-body chaos propagates. In the second half of the talk I will discuss more recent developments that have led to a more precise relation between the energy density Green’s function of maximally chaotic systems and out-of-time ordered correlation functions. This new relation, known as `pole-skipping’, implies that chaos provides non-perturbative constraints on the dispersion relations of hydrodynamic collective modes in such systems.

This talk is part of the Theoretical Physics Seminars series.

This talk is included in these lists:

• Bham Talks
• Theoretical Physics Seminars
• Theory Library
• What's on in Physics?

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