Increasing the classical data throughput in quantum networks by combining quantum linear network coding with superdense coding

Abstract

This paper shows how network coding and superdense coding can be combined to increase the classical data throughput by a factor $2-\epsilon$ (for arbitrarily small $\epsilon >0$) compared to the maximum that could be achieved using either network coding or superdense coding alone. Additionally, a general decomposition of a ``mixed'' network (i.e., consisting of classical and quantum links) is given, and it is reasoned that, owing to the inherent hardness of finding network codes, this may well lead to an increase in classical data throughput in practise, should a scenario arise in which quantum networks are used to transfer classical information.

arXiv comment9 pages, 4 figures

References in corpus (7)

• Fast quantum logic gates with trapped-ion qubits
• Beating the channel capacity limit for superdense coding with entangled ququarts
• Phase-tuned entangled state generation between distant spin qubits
• Quantum network communication -- the butterfly and beyond
• Quantum network coding for quantum repeaters
• A Study of Teleportation and Super Dense Coding capacity in Remote Entanglement Distribution
• Quantum linear network coding as one-way quantum computation

Cited by in corpus (1)

• Variational Quantum Optimization of Nonlocality in Noisy Quantum Networks