Uncertainty relations and topological-band insulator transitions in 2D gapped Dirac materials. (20th March 2015)

• Record Type: Journal Article
• Authors: Romera, E; Calixto, M
• Is Part Of: Journal of physics. Volume 27:Number 17(2015)
• Publication Date: 2015-03-20
• Subjects: topological phases -- graphene -- entropic uncertainty relations; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/0953-8984/27/17/175003
• Languages: English
• ISSNs: 0953-8984

Abstract

Abstract: Uncertainty relations are studied for a characterization of topological-band insulator transitions in 2D gapped Dirac materials isostructural with graphene. We show that the relative or Kullback–Leibler entropy in position and momentum spaces, and the standard variance-based uncertainty relation give sharp signatures of topological phase transitions in these systems.