Exact C=1 Boundary Conformal Field Theories

Details Exact C=1 Boundary Conformal Field Theories Exact C=1 Boundary Conformal Field Theories

1993-11-17

arxiv.org/abs/hep-th/9311092v1

Phys.Rev.Lett. 72 (1994) 1968-1971

Physics

High Energy Physics

High Energy Physics - Theory

harvmac, 10 pages, PUPT-1432/IASSNS-HEP-93/78

Scientific paper

10.1103/PhysRevLett.72.1968

We present a solution of the problem of a free massless scalar field on the half line interacting through a periodic potential on the boundary. For a critical value of the period, this system is a conformal field theory with a non-trivial and explicitly calculable S-matrix for scattering from the boundary. Unlike all other exactly solvable conformal field theories, it is non-rational ({\it i.e.} has infinitely many primary fields). It describes the critical behavior of a number of condensed matter systems, including dissipative quantum mechanics and of barriers in ``quantum wires''.

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