Vortex Creation in Bose-Einstein Condensates by Diffraction on a Helical Light Grating

Kestutis Staliunas

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arXiv · cond-mat/9912268

Vortex Creation in Bose-Einstein Condensates by Diffraction on a Helical Light Grating

Kestutis Staliunas

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Abstract

It is shown that diffraction of Bose-Einstein condensates on a helical light grating results in vortices in the condensate. Helical light gratings can be produced by light interference of a Gaussian laser beam with a helical one. Diffraction orders of the Bose-Einstein condensate contain vortices of corresponding topological charge. The phenomena is illustrated by numerical integration of the Gross-Pitaevskii equation in two dimensions.

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Kestutis Staliunas. 2002-12-10. Vortex Creation in Bose-Einstein Condensates by Diffraction on a Helical Light Grating. https://arxiv.org/abs/cond-mat/9912268

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