Date/Time
Date(s) - 20/10/2004
3:30 pm - 4:30 pm

Title: Highly correlated matter at the mesoscopic scale: From Kondo effect to Quantum criticality

Speaker: Dr. Karin LeHur

Institute: Department of Physics
University of Sherbrooke

Location: ABB 102

Description:

The single-electron box is an ideal atomic system which can be realized using nanotechnology. The crossover from the atomic to the macroscopic world can be studied by controlling the tunnel coupling between the quantum box and a two-dimensional electron gas. The goal of this seminar is to revisit theoretically the single-electron box in the more general situation where the external circuit shows resistive behavior at low frequency then giving rise to quantum noise. The important question we will pose is: “How can we detect the effect of the quantum noise on the single-electron box?” We will also show how this setup might be a good candidate to detect “Kondo physics” or “quantum criticality” at the mesoscopic scale.