Fast and dense magneto-optical traps for Strontium

Abstract

We improve the efficiency of sawtooth-wave-adiabatic-passage (SWAP) cooling for strontium atoms in three dimensions and combine it with standard narrow-line laser cooling. With this technique, we create strontium magneto-optical traps with $6\times 10^7$ bosonic ${}^{88}$Sr ($1\times 10^7$ fermionic ${}^{87}$Sr) atoms at phase-space densities of $2\times 10^{-3}$ ($1.4\times 10^{-4}$). Our method is simple to implement and is faster and more robust than traditional cooling methods.

9 pages, 6 figures

References in corpus (7)

• Systematic evaluation of an atomic clock at 2e-18 total uncertainty
• New Limits on Coupling of Fundamental Constants to Gravity Using ${}^{87}$Sr Optical Lattice Clocks
• Spin-orbit coupled fermions in an optical lattice clock
• Atom interferometry with the Sr optical clock transition
• Narrow Line Photoassociation in an Optical Lattice
• Production of quantum degenerate strontium gases: Larger, better, faster, colder
• Quantum Emulation of Extreme Non-equilibrium Phenomena with Trapped Atoms

Cited by in corpus (3)

• A mid-infrared magneto-optical trap of metastable strontium for an optical lattice clock
• Charge dynamics of a molecular ion immersed in a Rydberg-dressed atomic lattice gas
• Simulations of sawtooth-wave adiabatic passage with losses