495 citations · 913 across the 9 of their papers we have counts for
5 papers · 1 filter
Spin Drag in a Bose Gas
S. B. Koller, A. Groot, P. C. Bons +3
It is well known that the charge current in a conductor is proportional to the applied electric field. This famous relation, known as Ohm's law, is the result of relaxation of the…
Phase contrast imaging of Bose condensed clouds
R. Meppelink, R. A. Rozendaal, S. B. Koller +2
Phase contrast imaging is used to observe Bose-Einstein condensates (BECs) at finite temperature in situ. The imaging technique is used to accurately derive the absolute phase shif…
Sound propagation in a Bose-Einstein condensate at finite temperatures
R. Meppelink, S. B. Koller, P. van der Straten
We study the propagation of a density wave in a magnetically trapped Bose-Einstein condensate at finite temperatures. The thermal cloud is in the hydrodynamic regime and the system…
Second sound dipole mode in a partially Bose-Einstein condensed gas
R. Meppelink, S. B. Koller, J. M. Vogels +2
We study the second sound dipole mode in a partially Bose-Einstein condensed gas. This mode is excited by spatially separating and releasing the center-of-mass of the Bose-Einstein…
Observation of shock waves in a large Bose-Einstein condensate
R. Meppelink, S. B. Koller, J. M. Vogels +6
We observe the formation of shock waves in a Bose-Einstein condensate containing a large number of sodium atoms. The shock wave is initiated with a repulsive, blue-detuned light ba…