Year: 2021
Type: article
Abstract: Thermodynamic resources, beyond their well-known usefulness in work extraction and other thermodynamic tasks, are often important also in tasks that are not evidently thermodynamic. Here we develop a framework for identifying such resources in diverse applications of bosonic continuous-variable systems. Introducing the class of bosonic linear thermal operations to model operationally feasible processes, we apply this model to identify uniquely quantum properties of bosonic states that refine classical notions of thermodynamic resourcefulness. Among these are (1) a suite of temperature-like quantities generalizing the equilibrium temperature to quantum, non-equilibrium scenarios; (2) signal-to-noise ratios quantifying a system’s capacity to carry information in phase-space displacement; and (3) well-established non-classicality measures quantifying the resolution in sensing and parameter estimation tasks.
Source: npj Quantum Information
Authors: Varun Narasimhachar, Syed Assad, Felix C. Binder, Jayne Thompson, Benjamin Yadin, Mile Gu
Language: English
Subfield: Statistical and Nonlinear Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,790
Funders: Silicon Valley Community Foundation, Fetzer Institute, Foundational Questions Institute, European Commission, National Research Foundation, National Research Foundation Singapore, Ministry of Education, India, Bundesministerium für Bildung, Wissenschaft und Forschung, Australian Research Council, H2020 European Research Council
OpenAlex ID: W2972865540