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TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology



Wednesday, 07 February 2007
(at 10:15 in room Phy 4.1.13)
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Transport through strongly correlated systems

Rodolfo A. Jalabert

IPCMS - GEMME
Universite Strasbourg
  France  






The conductance through a one-dimensional sample in which electrons are strongly correlated can be related to the persistent current of a large ring, composed of the sample and a non-interacting lead. A scaling law in the lead length, obtained from DMRG calculations, allows to extrapolate to a well-defined value of the conductance. This limiting value only depends on the intrinsic properties of the sample and on the nature of the contacts between the sample and the lead. The application of this method to a few physical examples will be discussed. In particular, we will show how Coulomb blockade can be obtained without tunnel barriers and how the electron conductance can be enhanced by a repulsive interaction.

Invited by K. Richter (LS seminar)

last modified: 2018.10.24 Mi
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