Physics – Quantum Physics
Scientific paper
2003-08-29
Phys. Rev. A 70, 012307 (2004)
Physics
Quantum Physics
6 pages, 3 figures
Scientific paper
10.1103/PhysRevA.70.012307
We analyze the role of nonlinear Hamiltonians in bosonic channels.
We show that the information capacity as a function of the channel energy is
increased with respect to the corresponding linear case, although only when the
energy used for driving the nonlinearity is not considered as part of the
energetic cost and when dispersive effects are negligible.
Giovannetti Vittorio
Lloyd Seth
Maccone Lorenzo
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