Version | v2 |
Release Date | 1992-05-26 |
Primary Language | en
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Bethe Ansatz and Quantum Groups: The Light--Cone Approach. II. From
RSOS(p+1) models to p-restricted Sine--Gordon Field Theories
release_iy2peblo4jfandx34rfksni3ja
by
C. Destri, H.J. de Vega
Abstract
We solve the RSOS(p) models on the light--cone lattice with fixed boundary
conditions by disentangling the type II representations of SU(2)_q, at
q=e^iπ/p, from the full SOS spectrum obtained through Algebraic Bethe
Ansatz. The rule which realizes the quantum group reduction to the RSOS states
is that there must not be singular roots in the solutions of the Bethe
Ansatz equations describing the states with quantum spin J<(p-1)/2. By
studying how this rule is active on the particle states, we are able to give a
microscopic derivation of the lattice S-matrix of the massive kinks. The
correspondence between the light--cone Six--Vertex model and the Sine--Gordon
field theory implies that the continuum limit of the RSOS(p+1) model is to be
identified with the p-restricted Sine--Gordon field theory.
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Stage
accepted
Date 1992-05-26
Version
v2
hep-th/9203065v2
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State is "active".
Revision:
0b87a387-eb60-4d8b-a6c6-a880fac0b08f
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