Transmission phase of a singly occupied quantum dot in the Kondo regime

Details Transmission phase of a singly occupied quantum dot in the Kondo regime Transmission phase of a singly occupied quantum dot in the Kondo regime

2007-11-07

arxiv.org/abs/0711.1172v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.100.226601

We report on the phase measurements on a quantum dot containing a single electron in the Kondo regime. Transport takes place through a single orbital state. Although the conductance is far from the unitary limit, we measure for the first time, a transmission phase as theoretically predicted of \pi/2. As the dot's coupling to the leads is decreased, with the dot entering the Coulomb blockade regime, the phase reaches a value of \pi. Temperature shows little effect on the phase behaviour in the range 30--600 mK, even though both the two-terminal conductance and amplitude of the Aharonov-Bohm oscillations are strongly affected. These results confirm that previous phase measurements involved transport through more than a single level.

Affiliated with

Also associated with

No associations

Rating

Transmission phase of a singly occupied quantum dot in the Kondo regime does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Transmission phase of a singly occupied quantum dot in the Kondo regime, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission phase of a singly occupied quantum dot in the Kondo regime will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-377274