Quantum Blackbody Thermometry

TL;DR

This paper proposes a novel quantum-based method for blackbody temperature measurement using ensembles of polarizable quantum systems, potentially reducing uncertainties and enhancing calibration in radiometry and thermometry.

Contribution

It introduces a primary quantum measurement approach for blackbody radiation using Rydberg atoms and molecules, offering a new paradigm in blackbody physics.

Findings

Quantum sensors can improve blackbody measurement accuracy.

A portable, calibration-free quantum device is feasible.

Quantum methods can complement classical radiometry techniques.

Abstract

Blackbody radiation (BBR) sources are calculable radiation sources that are frequently used in radiometry, temperature dissemination, and remote sensing. Despite their ubiquity, blackbody sources and radiometers have a plethora of systematics. We envision a new, primary route to measuring blackbody radiation using ensembles of polarizable quantum systems, such as Rydberg atoms and diatomic molecules. Quantum measurements with these exquisite electric field sensors could enable active feedback, improved design, and, ultimately, lower radiometric and thermal uncertainties of blackbody standards. A portable, calibration-free Rydberg-atom physics package could also complement a variety of classical radiation detector and thermometers. The successful merger of quantum and blackbody-based measurements provides a new, fundamental paradigm for blackbody physics.