5.3k citations · 25.9k across the 91 of their papers we have counts for
3 papers · 2 filters
The quantum capacity with symmetric side channels
Graeme Smith, John A. Smolin, Andreas Winter
We present an upper bound for the quantum channel capacity that is both additive and convex. Our bound can be interpreted as the capacity of a channel for high-fidelity quantum com…
Structured Codes Improve the Bennett-Brassard-84 Quantum Key Rate
Graeme Smith, Joseph M. Renes, John A. Smolin
A central goal in information theory and cryptography is finding simple characterizations of optimal communication rates subject to various restrictions and security requirements.…
Degenerate Quantum Codes for Pauli Channels
Graeme Smith, John A. Smolin
A striking feature of quantum error correcting codes is that they can sometimes be used to correct more errors than they can uniquely identify. Such degenerate codes have long been…