Effect of dephasing on the current statistics of mesoscopic devices

Details Effect of dephasing on the current statistics of mesoscopic devices Effect of dephasing on the current statistics of mesoscopic devices

2004-07-27

arxiv.org/abs/cond-mat/0407685v2

Phys. Rev. Lett. 93, 256803 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.93.256803

We investigate the effects of dephasing on the current statistics of mesoscopic conductors with a recently developed statistical model, focusing in particular on mesoscopic cavities and Aharonov-Bohm rings. For such devices, we analyze the influence of an arbitrary degree of decoherence on the cumulants of the current. We recover known results for the limiting cases of fully coherent and totally incoherent transport and are able to obtain detailed information on the intermediate regime of partial coherence for a varying number of open channels. We show that dephasing affects the average current, shot noise, and higher order cumulants in a quantitatively and qualitatively similar way, and that consequently shot noise or higher order cumulants of the current do not provide information on decoherence additional or complementary to what can be already obtained from the average current.

Affiliated with

Also associated with

No associations

Rating

Effect of dephasing on the current statistics of mesoscopic devices 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 Effect of dephasing on the current statistics of mesoscopic devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effect of dephasing on the current statistics of mesoscopic devices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-261395