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 …

Galactic history is written in the white dwarf stars. Their surface properties hint at interiors
composed of matter under extreme conditions. In the forty years since their discovery …

Quantum teleportation is the faithful transfer of quantum states between systems, relying on
the prior establishment of entanglement and using only classical communication during the …

Time has a fundamentally different character in quantum mechanics and in general relativity.
In quantum theory events unfold in a fixed order while in general relativity temporal order is …

We present a scheme that produces a strong U (1)-like gauge field on cold atoms confined
in a two-dimensional square optical lattice. Our proposal relies on two essential features, a …

In the last ten years extraordinary results in time and frequency metrology have been
demonstrated. Frequency-stabilization techniques for continuous-wave lasers and …

We develop a method of spectroscopy that uses a weak static magnetic field to enable direct
optical excitation of forbidden electric-dipole transitions that are otherwise prohibitively …

Evaporative cooling was performed to cool fermionic Yb 173 atoms in a crossed optical
dipole trap. The large elastic collision rate leads to efficient evaporation and we have …

We report direct single-laser excitation of the strictly forbidden (6 s 2) S 0 1↔(6 s 6 p) P 0 3
clock transition in Yb 174 atoms confined to a 1D optical lattice. A small (<? format?>∼< …

With ultracold Sr 87 confined in a magic wavelength optical lattice, we present the most
precise study (2.8 Hz statistical uncertainty) to date of the S 0 1-P 0 3 optical clock transition …