Exciton condensations in thin film topological insulator

Details Exciton condensations in thin film topological insulator Exciton condensations in thin film topological insulator

2010-07-31

arxiv.org/abs/1008.0097v2

EPL 97, 66008(2012)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 3 figures, published version

Scientific paper

We study the many-body physics in thin film topological band insulator, where the inter-edge Coulomb interaction can lead to an exciton condensation transition. We investigate the universality class of the exciton condensation quantum critical point. With different chemical potentials and interactions, the exciton condensation can belong to z = 2 mean field, or 3d XY, or Yukawa-Higgs universality classes. The interplay between exciton condensate and the time-reversal symmetry breaking is also discussed. Predictions of our work can be tested experimentally by tuning the chemical potentials on both surfaces of the thin film through gate voltage. We also show that all the analysis of the exciton condensate can be directly applied to a spin-triplet superconductor phase with attractive inter-edge interaction.

Affiliated with

Also associated with

No associations

Rating

Exciton condensations in thin film topological insulator 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 Exciton condensations in thin film topological insulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exciton condensations in thin film topological insulator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-8792