Physics – Quantum Physics
Scientific paper
2003-04-02
Phys. Rev. Lett. 91, 047901 (2003)
Physics
Quantum Physics
4 pages, 2 figures
Scientific paper
10.1103/PhysRevLett.91.047901
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 used to transmit more bits than those that can
be stored in the message sent down the channel. Bounds for the other capacities
of the multimode channel are also provided.
Giovannetti Vittorio
Lloyd Seth
Maccone Lorenzo
Shor Peter W.
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