Upcoming Events

Impurity Scattering in 1D Electron Phonon Liquid

June 4, 2012 11:00AM to 12:00PM
Presenter 
Alexey Galda, University of Birmingham
Location 
Building 223, Room S105
Type 
Seminar
Series 
MSD Special Seminar
Abstract:
We study the influence of electron-phonon coupling on electron transport through a Luttinger liquid with an embedded weak scatterer or weak link. We derive the renormalization group (RG) equations, which indicate that the directions of RG flows can change upon varying either the relative strength of the electron-electron and electronphonon coupling or the ratio of Fermi to sound velocities. This results in a rich phase diagram with up to three fixed points: two stable ones, corresponding to an ideal metal or insulator, and an intermediate unstable one.