Defect Lines in the Ising Model and Boundary States on Orbifolds

Details Defect Lines in the Ising Model and Boundary States on Orbifolds Defect Lines in the Ising Model and Boundary States on Orbifolds

1996-06-27

arxiv.org/abs/hep-th/9606177v2

PHYS.REV.LETT.77:2604-2607,1996

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, 2 figures in EPS and LaTeX attached (References added + Minor corrections)

Scientific paper

10.1103/PhysRevLett.77.2604

Critical phenomena in the two-dimensional Ising model with a defect line are studied using boundary conformal field theory on the $c=1$ orbifold. Novel features of the boundary states arising from the orbifold structure, including continuously varying boundary critical exponents, are elucidated. New features of the Ising defect problem are obtained including a novel universality class of defect lines and the universal boundary to bulk crossover of the spin correlation function.

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