6 papers
Certification of Network Quantum Sensing
Matteo Rosati, Gabriele Bizzarri, Marco Barbieri
The distribution of quantum sensors on quantum networks is a key enabler of quantum technologies in interferometry, gravimetry, timekeeping, biological monitoring, and beyond. Yet,…
Bayesian stepwise estimation of qubit rotations
Mylenne Manrique, Marco Barbieri, Assunta Di Vizio +4
This work investigates Bayesian stepwise estimation (Se) for measuring the two parameters of a unitary qubit rotation. While asymptotic analysis predicts a precision advantage for…
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…
Quasiprobability distributions with weak measurements
Gabriele Bizzarri, Stefano Gherardini, Mylenne Manrique +3
We discuss and experimentally demonstrate the role of quantum coherence in a sequence of two measurements collected at different times using weak measurements. For this purpose, we…
Faithful and secure distributed quantum sensing under general-coherent attacks
G. Bizzarri, M. Barbieri, M. Manrique +4
Quantum metrology and cryptography can be combined in a distributed and/or remote sensing setting, where distant end-users with limited quantum capabilities can employ quantum stat…
Experimental protocol for qubit-environment entanglement detection
Gabriele Bizzarri, Linda Sansoni, Eleonora Stefanutti +4
Decoherence is a manifestation of the coupling of a system with its environment. The resulting loss of information can hamper the functioning of quantum devices, hence the need of…