Single and multi-particle scattering in Helical liquid with an impurity

Details Single and multi-particle scattering in Helical liquid with an impurity Single and multi-particle scattering in Helical liquid with an impurity

2012-01-30

arxiv.org/abs/1201.6197v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9+ pages, 8 figures

Scientific paper

We examine the scattering behavior from a single non magnetic impurity in a helical liquid. A helical liquid is a one dimensional system with a pair of counter propagating edge states, which are time reversal partners. In the absence of a magnetic field, time reversal symmetry is conserved and hence single particle scattering is prohibited. However, multi particle processes are possible. We examine the backscattering current and noise, and derive the effective scattering charge. A magnetic field enhances the backscattered current, but reduces the effective scattering charge. We find that the scattering charge can vary between $e$ and $2e$, depending on the strength of electron-electron interactions and the magnetic field.

Affiliated with

Also associated with

No associations

Rating

Single and multi-particle scattering in Helical liquid with an impurity 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 Single and multi-particle scattering in Helical liquid with an impurity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single and multi-particle scattering in Helical liquid with an impurity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-359491