Remark on the coherent information saturating its upper bound
Lin Zhang
TL;DR
This paper discusses the conditions under which coherent information in quantum information theory reaches its maximum possible value, providing a necessary and sufficient criterion for this saturation.
Contribution
It derives a precise condition that characterizes when the coherent information saturates its upper bound in quantum information theory.
Findings
Identifies the necessary and sufficient condition for saturation.
Clarifies the relationship between coherent information and data processing.
Provides theoretical insight into quantum information bounds.
Abstract
Coherent information is a useful concept in quantum information theory. It connects with other notions in data processing. In this short remark, we discuss the coherent information saturating its upper bound. A necessary and sufficient condition for this saturation is derived.
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Taxonomy
TopicsQuantum Information and Cryptography · Quantum Computing Algorithms and Architecture · Quantum Mechanics and Applications