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arXiv · 2011.14470

Optical focusing of Bose-Einstein condensates

A. M. Kordbacheh·S. S. Szigeti·A. M. Martin
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Abstract

We theoretically investigate the optical focusing of a rubidium Bose-Einstein condensate onto a planar surface. Our analysis uses a Gaussian variational method that includes the effects of two-body atom-atom interactions and three-body recombination losses. The essential factors such as the width, peak density and atom loss rate of the focused BEC profile on the surface are investigated and compared to Gross-Pitaevskii numerical simulations. We find a reasonable agreement in the results between our analytical approach and the numerical simulations. Our analysis predicts that condensates of $10^5$ atoms could be focused down to $\sim 10$nm widths, potentially allowing nanometer-scale atomic deposition with peak densities greater than $10^5$ atoms/$\mu$m$^2$.

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A. M. Kordbacheh, S. S. Szigeti, A. M. Martin. 2020-11-29. Optical focusing of Bose-Einstein condensates. https://doi.org/10.1103/physreva.103.063304

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