Bose–Einstein condensation on a microelectronic chip

Hänsel W, Hommelhoff P, Hänsch T, Reichel J (2001)

Publication Type: Journal article

Publication year: 2001


Publisher: Nature Publishing Group

Book Volume: 413

Pages Range: 498-501


DOI: 10.1038/35097032


Although Bose-Einstein condensates of ultracold atoms have been experimentally realizable for several years, their formation and manipulation still impose considerable technical challenges. An all-optical technique that enables faster production of Bose-Einstein condensates was recently reported. Here we demonstrate that the formation of a condensate can be greatly simplified using a microscopic magnetic trap on a chip. We achieve Bose-Einstein condensation inside the single vapour cell of a magneto-optical trap in as little as 700 ms - more than a factor of ten faster than typical experiments, and a factor of three faster than the all-optical technique. A coherent matter wave is emitted normal to the chip surface when the trapped atoms are released into free fall; alternatively, we couple the condensate into an 'atomic conveyor belt', which is used to transport the condensed cloud non-destructively over a macroscopic distance parallel to the chip surface. The possibility of manipulating laser-like coherent matter waves with such an integrated atom-optical system holds promise for applications in interferometry, holography, microscopy, atom lithography and quantum information processing.

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Hänsel, W., Hommelhoff, P., Hänsch, T., & Reichel, J. (2001). Bose–Einstein condensation on a microelectronic chip. Nature, 413, 498-501.


Hänsel, Wolfgang, et al. "Bose–Einstein condensation on a microelectronic chip." Nature 413 (2001): 498-501.

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