title: Photonic channels for quantum communication
abstract: A general photonic channel for quantum communication is defined. By means of local quantum computing with a few auxiliary atoms, this channel can be reduced to one with effectively less noise. A scheme based on quantum interference is proposed that iteratively improves the fidelity of distant entangled particles.
authors.affiliation: Institut fur Theoretische Physik, Universitat Innsbruck, Technikerstrasse 25, A-6020 Innsbruck, Austria.
authors.lastname: van Enk SJ
authors.initials: JI
authors.lastname: Cirac
authors.initials: P
authors.lastname: Zoller