  The spectral properties of the 1-D Hubbard model are obtained from quantum
Monte Carlo simulations using the maximum entropy method. The one-particle
excitations are characterized by dispersive cosine-like bands. Velocities for
spin- and charge excitations are obtained that lead to a conformal charge
c=0.98 +/- 0.05 for the largest system simulated (N=84). An exact sum-rule for
the spin-excitations is fulfilled accurately with deviations of at most 10%
only around 2 kF.
