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.
@article{arxiv.1612.01653,
title = {Adiabatic quantum parameter amplification for generic robust quantum sensing},
author = {Yu Liu and Zijun Shu and Martin B. Plenio and Jianming Cai},
journal= {arXiv preprint arXiv:1612.01653},
year = {2016}
}