Monte Carlo simulations are used to study the non-uniform equilibrium charge
distribution along a single annealed polyelectrolyte chain under theta-solvent
conditions and with added salt. Within a range of the order of the Debye length
charge accumulates at chain ends while a slight charge depletion appears in the
central part of the chain. The simulation results are compared with theoretical
predictions recently given by Castelnovo et al. In the parameter range where
the theory can be applied we find almost perfect quantitative agreement.Comment: 8 pages, 4 figures, to be published in Eur. Phys. J.