Rabi Spectroscopy and Sensitivity of a Floquet Engineered Optical Lattice Clock

Rabi spectroscopy and excitation inhomogeneity in a one-dimensional optical lattice clock

We investigate the influence of atomic motion on precision Rabi spectroscopy of ultracold fermionic atoms confined in a deep one-dimensional optical lattice. We analyze the spectral components of longitudinal sideband spectra and present a model to extract information about the transverse motion and sample temperature from their structure. Rabi spectroscopy of the clock transition itself is als...

A transportable optical lattice clock

We present the experimental setup and first results of PTB’s transportable Sr clock. It consists of a physics package, several compact laser breadboards, and a transportable high finesse cavity for the clock laser. A comparison of the transportable system with our stationary optical lattice clock yields an instability of 2.2 × 10−15 √ s/τ for the transportable clock. The current fractional unce...

Micromagic clock: microwave clock based on atoms in an engineered optical lattice.

We propose a new class of atomic microwave clocks based on the hyperfine transitions in the ground state of aluminum or gallium atoms trapped in optical lattices. For such elements magic wavelengths exist at which both levels of the hyperfine doublet are shifted at the same rate by the lattice laser field, cancelling its effect on the clock transition. A similar mechanism for the magic waveleng...

The Strontium Optical Lattice Clock: Optical Spectroscopy with Sub-Hertz Accuracy

Progress on the optical lattice clock

Mots-clés : Horloge optique Réseaux optiques Strontium Ytterbium Effet corps noir Stark Collisions froids Métrologie quantique Optical lattice clocks have made significant leaps forward in recent years, demonstrating the ability to measure time/frequency at unprecedented levels. Here we highlight this progress, with a particular focus on research efforts at NIST and JILA. We discuss advances in...