“Quantum sensing” describes the use of a quantum system, quantum properties, or quantum
phenomena to perform a measurement of a physical quantity. Historical examples of …

Quantum technologies exploit entanglement to revolutionize computing, measurements, and
communications. This has stimulated the research in different areas of physics to engineer …

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 …

X-ray crystallography has been central to the development of many fields of science over the
past century. It has now matured to a point that as long as good-quality crystals are …

The statistical error in any estimation can be reduced by repeating the measurement and
averaging the results. The central limit theorem implies that the reduction is proportional to …

Nonclassical states of light find applications in enhancing the performance of optical
interferometric experiments, with notable example of gravitational-wave detectors. Still, the …

Quantum precision enhancement is of fundamental importance for the development of
advanced metrological optical experiments, such as gravitational wave detection and …

We investigate the performance of entangled coherent states for quantum-enhanced phase
estimation. An exact analytical expression of quantum Fisher information is derived to show …

We analyze the role of entanglement among probes and with external ancillas in quantum
metrology. In the absence of noise, it is known that unentangled sequential strategies can …

We consider a general model of unitary parameter estimation in the presence of Markovian
noise, where the parameter to be estimated is associated with the Hamiltonian part of the …