Adiabatic quantum parameter amplification for generic robust quantum sensing

TL;DR

This paper introduces an adiabatic quantum parameter amplification method that enhances quantum sensing robustness against noise and decoherence, achieving Heisenberg limit sensitivity without entanglement.

Contribution

It proposes a novel adiabatic amplification technique enabling noise-resilient quantum sensing at the Heisenberg limit without requiring entanglement.

Findings

Achieves robustness against noise acting on the same degree of freedom.

Surpasses classical statistical limits in sensitivity.

Operates without the need for entanglement.

Abstract

Quantum enhanced sensing provides a powerful tool for the precise measurement of physical parameters that is applicable in many areas of science and technology. The achievable gain in sensitivity is largely limited by the influence of noise and decoherence. Here, we propose a paradigm of adiabatic quantum parameter amplification to overcome this limitation. We demonstrate that it allows to achieve generic robust quantum sensing, namely it is robust against noise that may even acting on the same degree of freedom as the field. Furthermore, the proposal achieves entanglement-free Heisenberg limit sensitivity that surpasses the limit of classical statistics.