Transmission Of Optical Coherent State Qubits

Abstract

We discuss the long distance transmission of qubits encoded in optical coherent states. Through absorption these qubits suffer from two main types of errors, the reduction of the amplitude of the coherent states and accidental application of the Pauli Z operator. We show how these errors can be fixed using techniques of teleportation and error correcting codes.

Added two pages of explanation/background/review material to increase readability and clarity. Corrected minor typographical and linguistic errors