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Press Press information for 'An Ultra-Bright Atom Laser'

Press Press information for 'An Ultra-Bright Atom Laser'

V. Bolpasi, N.K. Efremidis, M.J. Morrissey, P. Condylis, D. Sahagun, M. Baker and W. von Klitzing
New Journal of Physics 16 033036 2014 (link) (arXiv)
Abstract:
We present a novel, ultra-bright atom-laser and ultra-cold thermal atom beam. Using rf-radiation we strongly couple the magnetic hyperfine levels of 87Rb atoms in a trapped Bose-Einstein condensate. At low rf-frequencies the resulting trap opens up just below the condensate and a well collimated, extremely bright atom laser emerges from just below the condensate. As opposed to traditional atom lasers based on weak coupling, this technique allows us to outcouple atoms at an arbitrarily large rate. We demonstrate an increase in flux per atom in the BEC by a factor of sixteen compared to the brightest quasi-continuous atom laser. Furthermore, we produce by two orders of magnitude the coldest thermal atom beam to date (200 nK).

The New Journal of Physics has selected the article as one of three highlights of the year 2014 in Atomic, Molecular and Optical physics.
NJP highligh Cover

Highlight

Reported in :

New Scientist
Phys.Org
http://www.kerdos.gr

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Additional Images :

experimental setup
The experimental setup (large image)


A small part of the atom laser team:
Vasiliki Bolpasi, Mark Baker, Wolf von Klitzing
(larger image here)


Three trapping potentials


Trapping potential opening up.
(download low resolution,
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Three atom Lasers (Click here for high-resolution pdf and png)

 

An ultra-bright atom laser (Click here for high-resolution pdf and png)

The world's brightest atom laser (Click here for high-resolution pdf and png)

 


Theory movie of the atom laser
(link to movie)