Document Type

Article

Publication Date

11-2-2000

Publication Title

Physical Review A - Atomic, Molecular, and Optical Physics

Department

Department of Physics and Astronomy

Abstract

We show that the recently discovered universal upper bound on the thermal conductance of a single channel comprising particles obeying arbitrary fractional statistics is in fact a consequence of a more general universal upper bound, involving the averaged entropy and energy currents of a single channel connecting heat reservoirs with arbitrary temperatures and chemical potentials. The latter upper bound in turn leads, via Holevo's theorem, to a universal (i.e., statistics independent) upper bound on the optimum capacity for classical information transmission down a single, wideband quantum channel.

DOI

10.1103/PhysRevA.62.052104

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