964 citations · 2.3k across the 13 of their papers we have counts for
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Capacity of nonlinear bosonic systems
Vittorio Giovannetti, Seth Lloyd, Lorenzo Maccone
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 corres…
Classical capacity of the lossy bosonic channel: the exact solution
Vittorio Giovannetti, Saikat Guha, Seth Lloyd +3
The classical capacity of the lossy bosonic channel is calculated exactly. It is shown that its Holevo information is not superadditive, and that a coherent-state encoding achieves…
Broadband channel capacities
Vittorio Giovannetti, Seth Lloyd, Lorenzo Maccone +1
We study the communication capacities of bosonic broadband channels in the presence of different sources of noise. In particular we analyze lossy channels in presence of white nois…
Information rate of waveguide
Vittorio Giovannetti, Seth Lloyd, Lorenzo Maccone +1
We calculate the communication capacity of a broadband electromagnetic waveguide as a function of its spatial dimensions and input power. We analyze the two cases in which either a…
Entanglement assisted capacity of the broadband lossy channel
Vittorio Giovannetti, Seth Lloyd, Lorenzo Maccone +1
We calculate the entanglement assisted capacity of a multimode bosonic channel with loss. As long as the efficiency of the channel is above 50%, the superdense coding effect can be…
The quantum speed limit
Vittorio Giovannetti, Seth Lloyd, Lorenzo Maccone
How fast can a quantum system evolve? We answer this question focusing on the role of entanglement and interactions among subsystems. In particular, we analyze how the order of the…