Affiliation
University of Wisconsin-Madison
Title
Transport in electron bilayers: Fermi-Liquids, strange metals, composite fermions
Abstract
In this talk, I will discuss the fluctuation-driven mechanism of energy transfer and Coulomb drag between two spatially separated conducting electron systems. Examples of systems include Fermi-liquids with and without Galilean invariance, strongly correlated strange metal phases and quantum Hall liquids of composite fermions. We will discuss the role of collective excitations and develop a general hydrodynamic description of the nonradiative near-field energy transfer and transresistance between the layers that do not rely on the quasiparticle concept and capture interactions nonperturbatively. I will contrast results to the experimental examples of super-Planckian energy transfer and measured drag between graphene sheets.