Physics - Colloquium

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Physics Colloquium: "Many-body localization: alive enough!"

Event Type
Lecture
Sponsor
Department of Physics
Location
Loomis Lab 141 and via Zoom
Virtual
wifi event
Date
Feb 7, 2024   4:00 pm  
Speaker
Anushya Chandran (Boston University)
Contact
Kelly H Darr
E-Mail
khdarr@illinois.edu
Phone
12173007821
Views
168

Statistical mechanics is a central pillar of modern science. At its core is the idea of ergodicity, which allows for a simple description of an interacting quantum system in terms of a few properties like energy density, without keeping track of the entire wavefunction. But what if a quantum system fails to equilibrate? 

In this talk, I will describe the phenomenon of many-body localization, wherein interacting particles in disordered landscapes fail to be ergodic. I will discuss recent controversies and show that a theory based on rare resonanaces, as opposed to rare regions, explains emperical numerical and experimental observations. I will then turn to physical consequences of non-ergodicity in strongly driven systems and describe topological energy pumps. These pumps may form the basis for on-chip, magnetic-field free, non-reciprocal devices in superconducting qubit architectures.

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