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How to mode-lock an atom laser

Peter D. Drummond·Antonios Eleftheriou·Kerson Huang·Karen V. Kheruntsyan
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Abstract

We consider a possible technique for mode-locking an atom laser, based on the generation of a dark soliton in a ring-shaped Bose-Einstein condensate, with repulsive atomic interactions. The soliton is a kink, with angular momentum per particle equal to \hbar/2. It emerges naturally, when the condensate is stirred at the soliton velocity, and subsequently outcoupled with a periodic Raman pulse-train. The result is a replicating coherent field inside the atom laser. We give a numerical demonstration of the generation and stabilization of the soliton.

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Peter D. Drummond, Antonios Eleftheriou, Kerson Huang, Karen V. Kheruntsyan. 2000-02-24. How to mode-lock an atom laser. https://arxiv.org/abs/cond-mat/0002389

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