Dimensional Scaling of Quantum Information Dissipation
Abstract
We establish the sharp contraction rate of Quantum Jensen-Shannon Divergence under d-dimensional depolarizing dynamics: \Gamma_d = \gamma(1+2/d). Unlike standard information measures, this rate reveals a dimensional scaling effect, interpolating between 2\gamma for qubits and \gamma in the macroscopic limit. The derived universal ratio \Gamma_2/\Gamma_3 = 6/5 offers a parameter-free benchmark for quantifying decoherence in experimental quantum systems.
Fields of Study & Subjects
Quantum Information and Cryptography
Statistical Mechanics and Entropy
Quantum Mechanics and Applications
Publication details
- Journal / source
- Zenodo (CERN European Organization for Nuclear Research)
- Publication date
- 5 January 2026
- Language
- EN
- Document type
- Preprint