amphitheatre (salle 1035)
5155, chemin de la rampe
Montréal (QC) Canada  H3T 2B2

Andy Lucas, Department of Physics, Stanford University, Stanford, California 94305, USA

A generic interacting and thermalizing classical or quantum many-body system exhibits a hydrodynamic limit, where at late times the dynamics is entirely controlled by collective modes of locally conserved quantities. A hydrodynamic perspective gives a simple, solvable limit of the transport problem in a strongly correlated electron system. I will describe the consequences of hydrodynamics on the DC electrical and thermal conductivity, highlighting three particular examples we have recently studied: (1) the consequences of potential vs magnetic disorder on transport in viscous Fermi liquids, (2) consequences of Fermi surface geometry on transport at the ballistic-to-hydrodynamic crossover, and (3) the experimentally observed violations of the Wiedemann-Franz law in the quasirelativistic electron-hole plasma of graphene. These new theories may explain puzzling transport phenomena, including T2 resistivity in single-band SrTiO3, and 'strange metal' phases.

Site web du groupe du Dr Lucas

 Cette conférence est présentée par le RQMP Versant Nord du Département de physique de l'Université de Montréal et le Département de génie physique de Polytechnique Montréal.

Signatures of electronic hydrodynamics in electrical and thermal transport
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