Quantum sensors allow the estimation of parameters with precision higher than that obtained with classical strategies. Devices based on quantum physics have allowed the precise estimation of the gravitational field, the detailed imaging of the brain, the detection of gravitational-wave sources more than 400 million light years away, and an ever-increasing precision in the measurement of time. Quantum metrology, which is the conceptual framework that encompasses all these devices, is reviewed here, emphasizing recent results regarding noisy systems.
@article{arxiv.2401.13658,
title = {Quantum sensing: Beyond the classical limits of precision},
author = {Luiz Davidovich},
journal= {arXiv preprint arXiv:2401.13658},
year = {2024}
}
Comments
5 pages, 4 figures, based on presentation at the Workshop Quantum Science and Technology: Recent advances and new perspectives, Pontifical Academy of Sciences of Vatican, November 30th to December 2nd, 2023