Optimal and Variational Multiparameter Quantum Metrology and Vector-Field Sensing

We study multiparameter sensing of two-dimensional (2D) and three-dimensional (3D) vector fields within the Bayesian framework for SU(2) quantum interferometry. We establish a method to determine the optimal quantum sensor, which establishes the fundamental limit on the precision of simultaneously e...

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Bibliographic Details
Main Authors: Raphael Kaubruegger, Athreya Shankar, Denis V. Vasilyev, Peter Zoller
Format: Article
Language:English
Published: American Physical Society 2023-06-01
Series:PRX Quantum
Online Access:http://doi.org/10.1103/PRXQuantum.4.020333