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quant-ph2026
Twenty-one characterizations of reversible quantum channels
Nan Li, Yuan Li, Hanyu Yang +1
Reversible quantum channels play a fundamental role in quantum dynamics and quantum information processing. A quantum channel is reversible if there exists another quantum channel…
quant-ph2026
The Hilbert-Schmidt norms of quantum channels and matrix integrals over the unit sphere
Yuan Li, Zhengli Chen, Zhihua Guo +1
The dynamics of quantum systems are generally described by a family of quantum channels (linear, completely positive and trace preserving maps). In this note, we mainly study the r…