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 …

Recent advances in optical atomic clocks and optical time transfer have enabled new
possibilities in precision metrology for both tests of fundamental physics and timing …

The use of correlated states and measurements promises improvements in the accuracy of
frequency metrology and the stability of atomic clocks. However, developing strategies …

Providing phase stable laser light is important to extend the interrogation time of optical
clocks towards many seconds and thus achieve small statistical uncertainties. We report a …

We present a simple, compact, and efficient scheme for integrated multiple wavelength
stabilization and continuous operation of a transportable^ 40Ca^+ optical clock using a multi …

Ultracold polar molecules offer a multitude of fascinating possibilities for physical research.
Proposals for their use reach from quantum chemistry, where they enable detailed studies of …

We present a 689-nm cavity-based laser system for cooling and trapping strontium atoms.
The laser is stabilized to a high-finesse cavity by the Pound–Drever–Hall technique …

We present the measurements of the photoionization cross sections of the excited^ 1P_1
and^ 3S_1 states of ultracold^ 88Sr atoms at 389.889 nm wavelength, which is the magic …

We present an optical phase-locked loop (OPLL)-enabled frequency measurement for a
stabilized laser with weak power and submegahertz linewidth. For frequency converting …

We propose using table-top-size ultra-stable optical cavities from state-of-the-art optical
atomic clocks as bar gravitational wave detectors for frequencies higher than 2 kHz. We …