On with global sensing
Virginia Water, 21 February 2025
Today, my colleagues and I have released a new preprint that could reshape the foundations of quantum sensing, one of the three pillars of quantum technologies: arXiv:2502.14817.
From the choice of ignorance priors and loss functions to the practical implementation of adaptive algorithms with optimal estimators, POVMs, and errors, this tutorial-style contribution provides a clear and cohesive formulation of global quantum sensing, metrology, and estimation through Bayesian principles of symmetry and geometry.
Still unsure? Explore ongoing work on practical sensing platforms: arXiv:2410.10615, arXiv:2310.02771, and arXiv:2204.11816, where the concepts of location-isomorphic parameter and symmetry-informed estimation, on which our work rests, are experimentally validated.
This work is the result of an international collaboration across five universities: Siegen (Germany), Nottingham (UK), Exeter (UK), La Laguna (Spain), and Surrey (UK).