Lower bound on the entropy of boundaries and junctions in (1+1)-dimensional quantum critical systems.
A lower bound is derived for the boundary entropy s=lng of a (1+1)-dimensional quantum critical system with boundary under the conditions c≥1 on the bulk conformal central charge and Δ1>(c-1)/12 on the most relevant bulk scaling dimension. This is the first general restriction on the possible values of g for bulk critical systems with c≥1.
New High Energy Theory Center and Department of Physics and Astronomy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854-8019, USA.
Daniel
D
Friedan
Anatoly
A
Konechny
Cornelius
C
Schmidt-Colinet