Sawtooth Wave Adiabatic Passage in a Magneto-Optical Trap

Abstract

We investigate theoretically the application of Sawtooth Wave Adiabatic Passage (SWAP) in a 1D magneto-optical trap (MOT). As opposed to related methods that have been previously discussed, our approach utilizes repeated cycles of stimulated absorption and emission processes to achieve both trapping and cooling, thereby reducing the adverse effects that arise from photon scattering. Specifically, we demonstrate this method's ability to cool, slow, and trap particles with fewer spontaneously emitted photons, higher forces and in less time when compared to a traditional MOT scheme that utilizes the same narrow linewidth transition. We calculate the phase space compression that is achievable and characterize the resulting system equilibrium cloud size and temperature.

arXiv comment14 pages, 7 figures. Major changes: reordering of detuning definitions, omission of what was originally Fig. 4, clarifications in Figs. 2-4 and 6-7, addition of reference 9, and restructuring of Sections 3 and 4 for clarity

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• Laser cooling of a diatomic molecule
• Transition times in the Landau-Zener model
• Narrow-line Laser Cooling by Adiabatic Transfer
• Fast and dense magneto-optical traps for Strontium
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Cited by in corpus (4)

• Speeding Up Particle Slowing using Shortcuts to Adiabaticity
• Two-color Ytterbium MOT in a compact dual-chamber setup
• Stimulated Slowing of Yb Atoms on the Narrow ${}^1{S}_0{\to }^3{P}_1$ Transition
• Entropy transfer from a quantum particle to a classical coherent light field