[Seminars] FW: [theory-seminar] KADANOFF CENTER FOR THEORETICAL PHYSICS SEMINAR TODAY

[Ramona Echols]

[Inline image 2]


KADANOFF CENTER FOR THEORETICAL PHYSICS SEMINAR TODAY

DATE: Monday November 30th, 2020

TIME: 1:30 P.M.

LOCATION: VIA ZOOM

SPEAKER: Brian Swingle, University of Maryland
Title: "Hydrodynamics and the Spectral Form Factor"
Abstract: Ensembles of quantum chaotic systems are expected to exhibit random matrix universality in their energy spectrum. The presence of this universality can be diagnosed by looking for a linear in time 'ramp' in the spectral form factor, but for realistic systems this feature is typically only visible after a sufficiently long time. I will discuss several developments in our understanding of this intermediate time regime in the spectral form factor. First, I will describe a hybrid system in which the single particle levels are chaotic while the many-body levels are those of non-interacting particles. In this case, the linear ramp is replaced by an exponential ramp. Interacting deformations of the system can then lead to full many-body quantum chaos, but the approach to a linear ramp can be slow due to the presence of nearly conserved modes. Motivated by this problem, I will present a theory of the spectral form factor in systems with slow modes and will apply the results to a variety of hydrodynamic systems. Joint work with Mike Winer and Shaokai Jian.
Upcoming Zoom Talks:
Particle Theory Seminar: Michael Ramsey-Musolf, UMass Amherst, Seminar Date, December 2nd, 1:30PM, Title: "Was There an Electroweak Phase Transition?"
Kadanoff Seminar: Leo Radzhiovsky, University of Colorado Boulder, Seminar Date, December 7th, Title: "Quantum smectic gauge theory"
Particle Theory Seminar: Michele Del Zotto,Uppsala Univeristy , Seminar Date, December 9th, 1:30PM, Title: "TBA"
Kadanoff Seminar: Alexander Seidel, Washington University in St. Louis, Seminar Date, December 14th, 1:30PM, Title: "Entangled Pauli Principles"
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