Skip to content

UltraCold Atom News

Sections
Personal tools
Home » News » Coldest winter ever in Slovenia

Coldest winter ever in Slovenia

Back to News

Group: Jeglič/Zupanič

Authors and contributors: Tadej Mežnaršič, Jaka Pišljar, Jure Brence, Rok Venturini, Žiga Gosar, Rok Žitko, Erik Zupanič, Peter Jeglič

In the late afternoon on November 18th 2016 we observed first cesium BEC in our laboratory. We cool the atoms flying from the oven with a Zeeman slower, trap them in the MOT, then use degenerate Raman sideband cooling to transfer them into F = 3, mF=3 state and cool them enough for a successful transfer into the dipole trap. We use the dimple trick to increase their density and then evaporate in the dimple trap.


The picture shows the atom cloud after 65 ms of expansion at different points along the evaporation. Transition happens at the critical temperature 20 nK. The rightmost picture shows an almost pure BEC with around 15000 cesium atoms.


Team: Tadej Mežnaršič, Jaka Pišljar, Jure Brence, Rok Venturini, Žiga Gosar, Rok Žitko, Erik Zupanič, Peter Jeglič

Former team members: Maj Škerjanc, Nejc Janša, Pavel Kos, Nejc Rosenstein, Gregor Bensa

Posted: 18 Apr 2017     Date: 18 Nov 2016


Conferences
PQI 2017
26 Apr 2017
Pittsburgh Quantum Institute
Atomtronics
07 May 2017
Benasque, Spain: Centro de Ciencias de Benasque Pedro Pascual
 

© 2005-2017
Contact us | About the site | Link to the site