FINITE-SIZE CORRECTIONS IN THE SUPERSYMMETRIC T-J MODEL WITH BOUNDARYFIELDS

The supersymmetric t-J model with boundary fields is discussed. Using the exact solution of the present model, the finite-size corrections o f the ground-state energy and the low-lying excitation energies are ca lculated. The partition functions are evaluated in the scaling limit t o obtain the conformal weights of the primary fields in the present mo del. A surface critical exponent and the ground-state degeneracy are a lso derived.