Fast convergence of Dynamic Capacities of GNS-Symmetric Quantum Channels
Paper in proceeding, 2026
We consider a quantum system described by a quantum channel Φ that is applied at every time step and study the time evolution of its information capacities. When Φ is a GNS symmetric channel (this includes Pauli channels for example), we give explicit exponential convergence bounds for the classical and quantum capacities. These bounds are in terms entropic properties of Φ.
infinite-time capacity
Quantum error correction
Author
Omar Fawzi
Laboratoire de l'Informatique du Parallélisme
Li Gao
Wuhan University
Mizanur Rahaman
Chalmers, Mathematical Sciences, Analysis and Probability Theory
Mostafa Taheri
Laboratoire de l'Informatique du Parallélisme
IEEE International Symposium on Information Theory Proceedings
21578095 (ISSN)
9798331580049 (ISBN)
2026 IEEE International Symposium on Information Theory, ISIT 2026
Guangzhou, China,
Guangzhou, China,
Subject Categories (SSIF 2025)
Mathematical sciences
Physical Sciences
Computer and Information Sciences
DOI
10.48550/arXiv.2605.15953