4 papers · 1 filter
Joint estimation of position and momentum with arbitrarily high precision using non-Gaussian states
Massimo Frigerio, Matteo G. A. Paris, Carlos Ernesto Lopetegui +1
We address the joint estimation of changes in the position and linear momentum of a quantum particle or, equivalently, changes in the complex field of a bosonic mode. Although thes…
Controlling Sloppiness in Two-Phase Estimation with a Tunable Weak Measurement
Gabriele Bizzarri, Miranda Parisi, Mylenne Manrique +6
The description of complex systems requires a progressively larger number of parameters. However, in practice, it often happens that a small subset of parameters suffices to descri…
Overcoming sloppiness for enhanced metrology in continuous-variable quantum statistical models
Massimo Frigerio, Matteo G. A. Paris
Multi-parameter statistical models may depend only on some functions of the parameters that are fewer than the number of initial parameters themselves. Such \emph{sloppy} statistic…
Dimension matters: precision and incompatibility in multi-parameter quantum estimation models
Alessandro Candeloro, Zahra Pazhotan, Matteo G. A. Paris
We study the role of probe dimension in determining the bounds of precision and the level of incompatibility in multi-parameter quantum estimation problems. In particular, we focus…