“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 …

Optical atomic clocks represent the state of the art in the frontier of modern measurement
science. In this article a detailed review on the development of optical atomic clocks that are …

Nuclear magnetic resonance (NMR) spectroscopy is a powerful technique for analysing the
structure and function of molecules, and for performing three-dimensional imaging of their …

Quantum entanglement has been generated and verified in cold-atom experiments and
used to make atom-interferometric measurements below the shot-noise limit. However …

There is increasing interest in the study of chiral degrees of freedom occurring in matter and
in electromagnetic fields. Opportunities in quantum sciences will likely exploit two main …

Optical atomic clocks are a driving force for precision measurements due to the high
accuracy and stability demonstrated in recent years. While further improvements to the …

Quantum nondemolition (QND) measurement is a remarkable tool for the manipulation of
quantum systems. It allows specific information to be extracted while still preserving fragile …

The ultimate stability of atomic clocks is limited by the quantum noise of the atoms. To
reduce this noise it has been suggested to use entangled atomic ensembles with reduced …

We propose a hybrid quantum-classical atomic clock where the interrogation of atoms
prepared in a spin-coherent (or weakly squeezed) state is used to feed back one or more …