528 citations · 816 across the 11 of their papers we have counts for
11 papers
Imaging Spinor Bose Gasses Using Off-Axis Holography
Nejc Blaznik, Jasper Smits, Marc Duran Gutierrez +1
We introduce a novel, non-invasive imaging technique based on spin-dependent off-axis holography (SOAH) for spin-1 Bose-Einstein condensates (BECs). Utilizing a dual reference beam…
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…
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…
Atom lithography without laser cooling
B. Smeets, P. van der Straten, T. Meijer +2
Using direct-write atom lithography, Fe nanolines are deposited with a pitch of 186 nm, a full width at half maximum (FWHM) of 50 nm, and a height of up to 6 nm. These values are a…
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…
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…
Reaching the hydrodynamic regime in a Bose-Einstein condensate by suppression of avalanche
K. M. R. van der Stam, R. Meppelink, J. M. Vogels +1
We report the realization of a Bose-Einstein condensate (BEC) in the hydrodynamic regime. The hydrodynamic regime is reached by evaporative cooling at a relative low density suppre…
Rotationally induced Penning ionization of ultracold photoassociated helium dimers
J. Léonard, A. P. Mosk, M. Walhout +4
We have studied photoassociation of metastable \tripS helium atoms near the \tripS-\tripP asymptote by both ion detection in a magneto-optical trap and trap-loss measurements in a…
Inelastic light scattering from a Mott insulator
D. Van Oosten, D. B. M. Dickerscheid, P. van der Straten +1
We propose to use Bragg spectroscopy to measure the excitation spectrum of the Mott insulator state of an atomic Bose gas in an optical lattice. We calculate the structure factor o…
Mott insulators in an optical lattice with high filling factors
D. van Oosten, P. van der Straten, H. T. C. Stoof
We discuss the superfluid to Mott insulator transition of an atomic Bose gas in an optical lattice with high filling factors. We show that also in this multi-band situation, the lo…
Quantum phases in an optical lattice
D. van Oosten, P. van der Straten, H. T. C. Stoof
We present the zero-temperature phase diagram of bosonic atoms in an optical lattice, using two different mean-field approaches. The phase diagram consists of various insulating ph…