Berry Phase Quantum Thermometer

TL;DR

This paper introduces a quantum thermometer utilizing Berry phase, enabling high precision temperature measurements without requiring thermal equilibrium, thus reducing measurement time and overcoming precision limits.

Contribution

The paper presents a novel quantum thermometer design based on Berry phase that operates without thermal equilibrium, improving speed and accuracy.

Findings

Achieves ultra-high precision temperature measurement

Eliminates need for thermal equilibrium with the sample

Reduces measurement times significantly

Abstract

We show how Berry phase can be used to construct an ultra-high precision quantum thermometer. An important advantage of our scheme is that there is no need for the thermometer to acquire thermal equilibrium with the sample. This reduces measurement times and avoids precision limitations.