posted on 2024-02-29, 17:00authored byJan Malamant, Natali Gusakova, Heidi Sandaker, Irina T. Sorokina, Daniel Comparat, Antoine Camper
We propose to extend coherent laser cooling from narrow-band to broad-band transitions by using trains of ultrashort broadband pulses. We study analytically two possible methods to reduce the momentum spread of a distribution by several units of photon momentum in a single spontaneous emission lifetime. We report on numerical simulations of one-dimensional laser cooling of a two-level system with realistic parameters. The technique introduced here is of high interest for efficient laser cooling of fast species with short lifetime such as positronium.
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