  We describe a scheme for the teleportation of entanglements of zero- and
one-photon running-wave field states. In addition to linear optical elements,
Kerr nonlinearity is also employed so as to achieve a 100% probability of
success in the ideal case. A comprehensive phenomenological treatment of errors
in the domain of running-wave physics, for linear and nonlinear optical
elements, is also given, making it possible to calculate the fidelity of the
teleportation process. A strategy for carrying out the Bell-type measurement
which is able to probe the absorption of photons in the optical elements is
adopted. Such strategy, combined with usually small damping constants
characterizing the optical devices, results in a high fidelity for the
teleportation process. The feasibility of the proposed scheme relies on the
fact that the Kerr nonlinearity it demands can be achieved through the recently
reported ultraslow light propagation in cold atomic media [Phys. Rev. Lett. 84,
1419 (2000); Phys. Rev. A 65, 033833 (2002)].
