1.1k citations · 7.9k across the 78 of their papers we have counts for
7 papers · 1 filter
Information Gain vs. State Disturbance in Quantum Theory
Christopher A. Fuchs
The engine that powers quantum cryptography is the principle that there are no physical means for gathering information about the identity of a quantum system's state (when it is k…
Entanglement-Enhanced Classical Communication on a Noisy Quantum Channel
Charles H. Bennett, Christopher A. Fuchs, John A. Smolin
We consider the problem of trying to send a single classical bit through a noisy quantum channel when two transmissions through the channel are available as a resource. Classically…
Information Gain vs. State Disturbance in Quantum Theory
Christopher A. Fuchs
The engine that powers quantum cryptography is the principle that there are no physical means for gathering information about the identity of a quantum system's state (when it is k…
Mathematical Techniques for Quantum Communication Theory
Christopher A. Fuchs, Carlton M. Caves
We present mathematical techniques for addressing two closely related questions in quantum communication theory. In particular, we give a statistically motivated derivation of the…
A General Fidelity Limit for Quantum Channels
Howard Barnum, Christopher A. Fuchs, Richard Jozsa +1
We derive a general limit on the fidelity of a quantum channel conveying an ensemble of pure states. Unlike previous results, this limit applies to arbitrary coding and decoding sc…
Quantum information: How much information in a state vector?
Carlton M. Caves, Christopher A. Fuchs
Quantum information refers to the distinctive information-processing properties of quantum systems, which arise when information is stored in or retrieved from nonorthogonal quantu…