Quantum-dot thermometry

TL;DR

This paper introduces a numerical method for accurately measuring temperature differences across a single quantum dot, which is crucial for testing thermoelectric theories in quantum systems.

Contribution

The paper proposes a novel numerical approach for quantum-dot thermometry that achieves high accuracy and can be applied in thermoelectric experiments.

Findings

Method is accurate within a few percent across various parameters.

Effective in measuring electron temperature in quantum dots.

Useful for testing thermoelectric efficiency theories.

Abstract

We present a method for the measurement of a temperature differential across a single quantum dot that has transmission resonances that are separated in energy by much more than the thermal energy. We determine numerically that the method is accurate to within a few percent across a wide range of parameters. The proposed method measures the temperature of the electrons that enter the quantum dot and will be useful in experiments that aim to test theory which predicts quantum dots are highly-efficient thermoelectrics.