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

Quantum metrology holds the promise of an early practical application of quantum
technologies, in which measurements of physical quantities can be made with much greater …

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 …

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

The simultaneous quantum estimation of multiple parameters can provide a better precision
than estimating them individually. This is an effect that is impossible classically. We review …

The evaluation of the minimal evolution time between two distinguishable states of a system
is important for assessing the maximal speed of quantum computers and communication …

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 …

One of the greatest challenges in the fields of quantum information processing and quantum
technologies is the detailed coherent control over each and every constituent of quantum …

Phase estimation, at the heart of many quantum metrology and communication schemes,
can be strongly affected by noise, whose amplitude may not be known, or might be subject …

We establish general limits on how precise a parameter, eg frequency or the strength of a
magnetic field, can be estimated with the aid of full and fast quantum control. We consider …