Introducing our resource theory of microscopicity: a unifying framework where macroscopic entropy meets Bayesian retrodiction, Petz recovery maps, quantum coherence, athermality, etc. Everything can be understood as "inferential asymmetry" or "irretrodictability".
arxiv.org/abs/2504.12738
arxiv.org
Macroscopic states and operations: a generalized resource theory of coherence
To understand the emergence of macroscopic irreversibility from microscopic reversible dynamics, the idea of coarse-graining plays a fundamental role. In this work, we focus on the concept of macrosco...