Boundary One-Point Functions, Scattering, and Background Vacuum   Solutions in Toda Theories
  The parametric families of integrable boundary affine Toda theories are considered. We calculate boundary one-point functions and propose boundary S-matrices in these theories. We use boundary one-point functions and S-matrix amplitudes to derive boundary ground state energies and exact solutions describing classical vacuum configurations. 
V.A. Fateev (1 and 2), E. Onofri (1 and 3) ((1) Laboratoire de   Physique Mathematique, Universite' Montpellier II, Pl. E.Ba...