Thermodynamic resources in continuous-variable quantum systems

Abstract Thermodynamic resources, beyond their well-known usefulness in work extraction and other thermodynamic tasks, are often important also tasks that not evidently thermodynamic. Here we develop a framework for identifying such resources diverse applications of bosonic continuous-variable systems. Introducing the class linear thermal operations to model operationally feasible processes, apply this identify uniquely quantum properties states refine classical notions resourcefulness. Among these (1) suite temperature-like quantities generalizing equilibrium temperature quantum, non-equilibrium scenarios; (2) signal-to-noise ratios quantifying system’s capacity carry information phase-space displacement; (3) well-established non-classicality measures resolution sensing parameter estimation tasks.