>VITAE:
Nicolas Cerf is associate professor at the Ecole Polytechnique, Université Libre de Bruxelles, Belgium, where he teaches information and coding theory, and leads the Centre for Quantum Information and Communication. Ph.D. in Physics from the Université Libre de Bruxelles, Belgium, and formerly postdoc at the Division de Physique Theorique, Universite Paris XI (Orsay), and at the California Institute of Technology.

The study of bosonic quantum channels has recently attracted a growing interest, motivated by the hope that they open a tractable approach to the generally hard problem of evaluating quantum channel capacities.
These works, however, have always been restricted to memoryless channels.
Here, it is shown that the classical capacity of a bosonic Gaussian channel with memory can be significantly enhanced if entangled input symbols are used instead of product symbols. For example, the capacity of a photonic channel with 70%-correlated thermal noise of one third the shot noise is enhanced by about 11% when using 3.8-dB entangled light with a modulation variance equal to the shot noise.