Entropic singularities give rise to quantum transmission
Non-additivity of the quantum channel coherent information is known to occur in some very noisy channels, but its fundamental origin is unclear. Here, the author explains its link with log singularity of quantum entropy, and shows that it can also come up for low-noise channels.
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| Format: | article |
| Language: | EN |
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Nature Portfolio
2021
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| Subjects: | |
| Online Access: | https://doaj.org/article/614ee04c9b8e48dfb369cd0c23414d10 |
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