3 papers
quant-ph2026
Spectral analysis of equilibration: information leakage in isolated quantum systems
André T. Cesário, Marcos G. Alpino, Reinaldo O. Vianna +1
We develop a unified dynamical-spectral framework for equilibration in isolated quantum systems based on a subspace coarse-graining approach. Central to our formulation is the Leak…
quant-ph2025
Thermodynamic Constraints on Information Transmission in Quantum Ensembles
André T. Cesário, Tiago Debarba
The processing of quantum information is limited by fundamental physical constraints on how information can be encoded, transmitted, and extracted. In particular, the non-orthogona…
quant-ph2025
A Complexity-Based Approach to Quantum Observable Equilibration
Marcos G. Alpino, Tiago Debarba, Reinaldo O. Vianna +1
We investigate the role of a statistical complexity measure to assign equilibration in isolated quantum systems. While unitary dynamics preserve global purity, expectation values o…