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MST colloquium

Description: Speaker
Wolf von Klitzing

Affiliation
IESL-FORTH

Title
An ultra-high Brightness Matter Wave Laser

Location
Department of Physics Bldg., Voutes, 3rd floor Seminar Room

Time
16:00

Language
English

Abstract

I will present a novel, ultra-bright atom-laser and ultra-cold thermal atom beam. Using rf-radiation we strongly couple the magnetic hyperfine levels of Rubidium atoms in a trapped Bose-Einstein condensate. The resulting time-dependent adiabatic potentials forms a trap, which at low rf-frequencies opens up just below the condensate and thus allows an extremely bright well-collimated atom laser to emerge. As opposed to traditional atom lasers based on weak coupling of the magnetic hyperfine levels, this technique allows us to outcouple atoms at an arbitrarily large rate. We achieve a flux of 4x10^7 atoms per second, a seven fold increase compared to the brightest atom lasers to date. Furthermore, we demonstrate by two orders of magnitude the coldest thermal atom beam (200 nK.
Status: Waiting for approval
Date: Friday, December 6, 2013
Time: 16:00 EET
Priority: 5-Medium
Access: Public
Created by: Lila Kalogeraki
Updated: Monday, December 2, 2013 12:36 GMT