Natural capacity of a system of two two-level atoms as a quantum information channel
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A system of two closely spaced atoms interacting through a vacuum electromagnetic field is considered. It is demonstrated that radiative decay in such a system resulting from photon exchange gives rise to a definite amount of information related to interatomic communication. Joint distributions of detection probabilities of atomic quanta and the corresponding amount of communication information are calculated.
8 pages, 2 figures, source in RevTeX, figures in PostScript
8 pages, 2 figures, source in RevTeX, figures in PostScript