3 papers
quant-ph2026
Tight Contraction Rates for Primitive Channels under Quantum -Divergences
Matthew Simon Tan, Marco Tomamichel, Ian George
Data-processing inequalities capture the phenomenon that two probability distributions can only become less distinguishable under any common post-processing. For more fine-grained…
cs.IT2025
Divergence Inequalities with Applications in Ergodic Theory
Ian George, Alice Zheng, Akshay Bansal
The data processing inequality is central to information theory and motivates the study of monotonic divergences. However, it is not clear operationally we need to consider all suc…
quant-ph2024
Online learning of a panoply of quantum objects
Akshay Bansal, Ian George, Soumik Ghosh +2
In many quantum tasks, there is an unknown quantum object that one wishes to learn. An online strategy for this task involves adaptively refining a hypothesis to reproduce such an…