Quality factor of a matter-wave beam

Details Quality factor of a matter-wave beam Quality factor of a matter-wave beam

2010-01-29

arxiv.org/abs/1001.5368v1

Phys. Rev. A 77, 013619 (2008)

Physics

Condensed Matter

Quantum Gases

4 pages, no figures. Minor changes compared to the published version

Scientific paper

Imperfections in dilute atomic beams propagating in the paraxial regime and in potentials of cylindrical symmetry have been characterized experimentally through the measurement of a parameter analogous to a beam quality factor [Riou et al., Phys. Rev. Lett. 96, 070404 (2006)]. We propose a generalization of this parameter, which is suitable to describe dilute matter waves propagating beyond the paraxial regime and in fully general linear atom-optical systems. The presented quality factor shows that the atomic beam symmetry can be traded for a better transverse collimation.

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