QJSD Contraction for Thermal GAD: η = 1-γ

Zenodo (CERN European Organization for Nuclear Research) 2026 Preprint Open access

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Authors: Alex B. Shvets
DOI: 10.5281/zenodo.18029243
Cited by: 0

Abstract

Exact contraction coefficient for quantum Jensen-Shannon divergence under thermal GAD channel (p=1/2): η_QJSD = 1-γ. Analytical proof via BKM metric and Y-mode dominance.

Fields of Study & Subjects

Statistical Mechanics and Entropy Quantum Information and Cryptography Quantum Mechanics and Applications

Publication details

Journal / source
Zenodo (CERN European Organization for Nuclear Research)
Publication date
15 January 2026
Language
EN
Document type
Preprint