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Bose-Einstein condensation on a microelectronic chip | | W Hänsel
; P Hommelhoff
; T W Hänsch
; J Reichel
; | | Date: |
4 Oct 2001 | | Journal: | Nature, 413 (6855), 498-501 | | Abstract: | 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. | | Source: | PubMed, pmid11586353 doi: 10.1038/35097032 | | Services: | Forum | Review | Favorites | |
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