Entanglement spectrum of topological insulators and superconductors - Condensed Matter > Strongly Correlated ElectronsReport as inadecuate




Entanglement spectrum of topological insulators and superconductors - Condensed Matter > Strongly Correlated Electrons - Download this document for free, or read online. Document in PDF available to download.

Abstract: We study two a priori unrelated constructions: the spectrum of edge modes ina band topological insulator or superconductor with a physical edge, and theground state entanglement spectrum in an extended system where an edge issimulated by an entanglement bipartition. We prove an exact relation betweenthe ground state entanglement spectrum of such a system and the spectrum edgemodes of the corresponding spectrally flattened Hamiltonian. In particular, weshow that degeneracies of the entanglement spectrum correspond to gapless edgemodes.



Author: Lukasz Fidkowski

Source: https://arxiv.org/







Related documents