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 …

Recent developments in frequency metrology and optical clocks have been based on
electronic transitions in atoms and singly charged ions as references. The control over all …

High-speed actuation of laser frequency is critical in applications using lasers and frequency
combs,, and is a prerequisite for phase locking, frequency stabilization and stability transfer …

We review experimental progress on optical atomic clocks and frequency transfer, and
consider the prospects of using these technologies for geodetic measurements. Today …

Currently, the most accurate and stable clocks use optical interrogation of either a single ion
or an ensemble of neutral atoms confined in an optical lattice. Here, we demonstrate a new …

Atomic clocks based on laser-cooled atoms are widely used as primary frequency
standards. Deploying such cold atom clocks (CACs) in space is foreseen to have many …

Deployed optical clocks will improve positioning for navigational autonomy, provide remote
time standards for geophysical monitoring and distributed coherent sensing, allow time …

We explore the dynamical response of dissipative Kerr solitons to changes in pump power
and detuning and show how thermal and nonlinear processes couple these parameters to …

The treatment of time in quantum mechanics is still an important and challenging open
question in the foundation of the quantum theory. This multi-authored book, written as an …