Entanglement assisted capacity of the broadband lossy channel

Abstract

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.

arXiv comment4 pages, 2 figures

References in corpus (5)

• The capacity of the noisy quantum channel
• Entanglement-Assisted Classical Capacity of Noisy Quantum Channels
• Capacities of Quantum Erasure Channels
• On the von Neumann capacity of noisy quantum channels
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