Determining topological order from a local ground state correlation function

Details Determining topological order from a local ground state correlation function Determining topological order from a local ground state correlation function

2010-10-26

arxiv.org/abs/1010.5357v3

Phys. Rev. B 83, 245115 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 3 figures. Major changes: the paper was divided into sections, the locality of the order in 3D topological insulators

Scientific paper

10.1103/PhysRevB.83.245115

Topological insulators are physically distinguishable from normal insulators only near edges and defects, while in the bulk there is no clear signature to their topological order. In this work we show that the Z index of topological insulators and the Z index of the integer quantum Hall effect manifest themselves locally. We do so by providing an algorithm for determining these indices from a local equal time ground-state correlation function at any convenient boundary conditions. Our procedure is unaffected by the presence of disorder and can be naturally generalized to include weak interactions. The locality of these topological indices implies bulk-edge correspondence theorem.

Affiliated with

Also associated with

No associations

Rating

Determining topological order from a local ground state correlation function 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 Determining topological order from a local ground state correlation function, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determining topological order from a local ground state correlation function will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-159346