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SUMMARY:Strongly correlated electrons driven by an electric field - Camill
 e Aron (Rutgers)
DTSTART:20120530T102000Z
DTEND:20120530T110000Z
UID:TALK38212@talks.cam.ac.uk
CONTACT:Dr. Mike Towler
DESCRIPTION:The out-of-equilibrium physics of correlated electrons is attr
 acting a\nlot of interest\, motivated by new experimental realizations in\
 nnon-linear transport in devices\, heterostructures and cold atoms. In\nth
 is talk\, I will focus on the Hubbard-U model driven out of\nequilibrium b
 y a constant electric field E. I will briefly explain how\none can solve t
 he finite-U finite-E problem directly in the steady\nstate (bypassing the 
 transient dynamics) by means of a new dynamical\nmean-field theory. Afterw
 ards\, I will mainly discuss the fate of the\nMott physics in the non-line
 ar (strong E) regime by detailing two key\nfeatures:\n - the dimensional c
 rossover towards a lower dimensional system\;\n - the dielectric breakdown
  of the Mott insulator.\n\nReferences:\n\n C. Aron\, G. Kotliar\, C. Weber
 \, Phys. Rev. Lett. 108\, 086401 (2012)\n\n C. Aron\, arXiv:1203:3540 (201
 2)\n\n
LOCATION:TCM Seminar Room\, Cavendish Laboratory
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