Metastable helium Bose-Einstein condensate with a large number of atoms

A. Tychkov, T. Jeltes, J.M. McNamara, P.J.J. Tol, N. Herschbach, W. Hogervorst, W. Vassen

Research output: Contribution to JournalArticleAcademicpeer-review


We have produced a Bose-Einstein condensate of metastable helium (He*4) containing over 1.5× 107 atoms, which is a factor of 25 higher than previously achieved. The improved starting conditions for evaporative cooling are obtained by applying one-dimensional Doppler cooling inside a magnetic trap. The same technique is successfully used to cool the spin-polarized fermionic isotope (He*3), for which thermalizing collisions are highly suppressed. Our detection techniques include absorption imaging, time-of-flight measurements on a microchannel plate detector, and ion counting to monitor the formation and decay of the condensate. © 2006 The American Physical Society.
Original languageEnglish
Article number031603 (R)
JournalPhysical Review A. Atomic, Molecular and Optical Physics
Issue number73
Publication statusPublished - 2006


Dive into the research topics of 'Metastable helium Bose-Einstein condensate with a large number of atoms'. Together they form a unique fingerprint.

Cite this