Quantum metrology is one of the most promising applications of quantum technologies. The
aim of this research field is the estimation of unknown parameters exploiting quantum …

We show that continuous quantum nondemolition (QND) measurement of an atomic
ensemble is able to improve the precision of frequency estimation even in the presence of …

Quantum metrology is one of the most relevant applications of quantum information theory to
quantum technologies. Here, quantum probes are exploited to overcome classical bounds in …

A boundary time crystal is a quantum many-body system whose dynamics is governed by
the competition between coherent driving and collective dissipation. It is composed of N two …

In this paper, we investigate the role of the nonlinear response of a material to improve
quantum metrology. We show that the collective optical behavior of an atomic ensemble can …

Dissipative many-body quantum dynamics can feature strong symmetries which give rise to
conserved quantities. We discuss here how a strong symmetry in conjunction with a …

We find that a quantum device having an accessory involving precision measurement can
have an enhancement of its metrological precision in estimating an unknown parameter of …

Abstract Information about a classical parameter encoded in a quantum state can only
decrease if the state undergoes a non-unitary evolution, arising from the interaction with an …

Entanglement is the quantum resource at the heart of most protocols of quantum Information,
allowing to outperform classical approaches of its application, such as quantum metrology …