English

Lower bound on the entropy of boundaries and junctions in 1+1d quantum critical systems

High Energy Physics - Theory 2015-06-05 v1 Statistical Mechanics Quantum Physics

Abstract

A lower bound is derived for the boundary entropy s = ln g of a 1+1d quantum critical system with boundary, under the conditions that the bulk conformal central charge c is >=1 and the most relevant bulk scaling dimension is >(c-1)/12. This is the first general restriction on the possible values of g for bulk critical systems with c >= 1.

Keywords

Cite

@article{arxiv.1206.5395,
  title  = {Lower bound on the entropy of boundaries and junctions in 1+1d quantum critical systems},
  author = {Daniel Friedan and Anatoly Konechny and Cornelius Schmidt-Colinet},
  journal= {arXiv preprint arXiv:1206.5395},
  year   = {2015}
}

Comments

7 pages, 1 figure, pdflatex