  The propagation of macroscopic entangled states over large distances in the
presence of loss is of fundamental interest and may have practical applications
as well. Here we describe two different techniques in which state
discrimination can be used to violate Bell's inequality with macroscopic
phase-entangled coherent states. We find that Bell's inequality can be violated
by these macroscopic states over a distance of approximately 400 km in
commercially-available optical fibers.
