Lower bound on the entropy of boundaries and junctions in 1+1d quantum
critical systems [PDF]
Daniel Friedan, Anatoly Konechny, Cornelius Schmidt-ColinetA 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.View original: http://arxiv.org/abs/1206.5395
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