C
Christopher King
Researcher at Northeastern University
Publications - 130
Citations - 5228
Christopher King is an academic researcher from Northeastern University. The author has contributed to research in topics: Classical capacity & Amplitude damping channel. The author has an hindex of 34, co-authored 129 publications receiving 4816 citations. Previous affiliations of Christopher King include Princeton University & Cornell University.
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Stability Criteria for Switched and Hybrid Systems
TL;DR: This paper considers the stability of switched systems in which there are constraints on the switching rules, through both dwell-time requirements and state-dependent switching laws, and discusses the theory of Lyapunov functions and the existence of converse theorems.
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Minimal entropy of states emerging from noisy quantum channels
TL;DR: It is proved that for a tensor product of two unital stochastic maps on qubit states, using an entanglement that involves only states which emerge with minimal entropy cannot decrease the entropy below the minimum achievable using product states.
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The capacity of the quantum depolarizing channel
TL;DR: In this article, it was shown that the information-carrying capacity of the d-dimensional depolarizing channel can be computed by encoding messages as products of pure states belonging to an orthonormal basis of the state space.
Posted Content
Minimal Entropy of States Emerging from Noisy Quantum Channels
TL;DR: In this article, the authors consider the minimal entropy of qubit states transmitted through two uses of a noisy quantum channel, which is modeled by the action of a completely positive trace-preserving (or stochastic) map.
Proceedings ArticleDOI
On the Performance of IEEE 802.11 under Jamming
TL;DR: One of the key results is a characterization of optimal omniscient jamming that establishes a lower bound on the saturation throughput of 802.11 under arbitrary jammer attacks.