Macroscopic fluctuation theory of local collisional dynamics

TL;DR

This paper explores the macroscopic fluctuations in deterministic local collision dynamics, proposing that these fluctuations are described by a non strictly convex functional, which challenges traditional assumptions.

Contribution

It introduces a macroscopic fluctuation theory specifically for local collisional dynamics, highlighting the non convex nature of the fluctuation functional.

Findings

Fluctuations are governed by a non strictly convex functional.

Challenges traditional convex assumptions in fluctuation theories.

Provides a theoretical framework for deterministic local collision systems.

Abstract

We explain why the macroscopic fluctuations of deterministic local collision dynamics should be characterized by a non strictly convex functional.