135 citations · 171 across the 4 of their papers we have counts for
4 papers
Non-exponential one-body loss in a Bose-Einstein condensate
S. Knoop, J. S. Borbely, R. van Rooij +1
We have studied the decay of a Bose-Einstein condensate of metastable helium atoms in an optical dipole trap. In the regime where two- and three-body losses can be neglected we sho…
Magnetic-field dependent trap loss of ultracold metastable helium
J. S. Borbely, R. van Rooij, S. Knoop +1
We have experimentally studied the magnetic-field dependence of the decay of a Bose-Einstein condensate of metastable 4He atoms confined in an optical dipole trap, for atoms in the…
Frequency metrology in quantum degenerate helium: Direct measurement of the 2 3S1 - 2 1S0 transition
R. van Rooij, J. S. Borbely, J. Simonet +4
Precision spectroscopy of simple atomic systems has refined our understanding of the fundamental laws of quantum physics. In particular, helium spectroscopy has played a crucial ro…
Enhanced heat flow in the hydrodynamic-collisionless regime
R. Meppelink, R. van Rooij, J. M. Vogels +1
We study the heat conduction of a cold, thermal cloud in a highly asymmetric trap. The cloud is axially hydrodynamic, but due to the asymmetric trap radially collisionless. By loca…