“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-enhanced measurements exploit quantum mechanical effects for increasing the
sensitivity of measurements of certain physical parameters and have great potential for both …

Many-particle entanglement is a key resource for achieving the fundamental precision limits
of a quantum sensor. Optical atomic clocks, the current state of the art in frequency precision …

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 …

Quantum sensors are an established technology that has created new opportunities for
precision sensing across the breadth of science. Using entanglement for quantum …

Networking is integral to quantum communications and has significant potential for
upscaling quantum computer technologies. Recently, it was realized that the sensing …

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 …

The second quantum revolution hinges on the creation of materials that unite atomic
structural precision with electronic and structural tunability. A molecular approach to …

The extraordinary sensitivity of plasmonic sensors is well-known in the optics and photonics
community. These sensors exploit simultaneously the enhancement and the localization of …

Tailored quantum states of light can be created via a transfer of collective quantum states of
matter to light modes. Such collective quantum states emerge in interacting many-body …