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Semiclassical limits to the linewidth of an atom laser

Johnsson, Mattias; Haine, S.; Hope, Joseph; Robins, Nicholas; Figl, Cristina; Jeppesen, M; Dugue, J; Close, John


We investigate the linewidth of a quasicontinuous atom laser within a semiclassical framework. In the high flux regime, the lasing mode can exhibit a number of undesirable features such as density fluctuations. We show that the output therefore has a complicated structure that can be somewhat simplified using Raman outcoupling methods and energy-momentum selection rules. In the weak outcoupling limit, we find that the linewidth of an atom laser is instantaneously Fourier limited, but, due to...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
Source: Physical Review A: Atomic, Molecular and Optical Physics
DOI: 10.1103/PhysRevA.75.043618


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