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10 papers · 1 filter
Collapse dynamics of trapped Bose-Einstein condensates
L. Santos, G. V. Shlyapnikov
We analyze the implosion and subsequent explosion of a trapped condensate after the scattering length is switched to a negative value. Our results compare very well qualitatively a…
Dynamics of dark solitons in elongated Bose-Einstein condensates
A. E. Muryshev, G. V. Shlyapnikov, W. Ertmer +2
We find two types of moving dark soliton textures in elongated Bose-Einstein condensates: non-stationary kinks and proper dark solitons. The former have a curved notch region and r…
A Lattice-Boltzmann method for the simulation of transport phenomena in charged colloids
Juergen Horbach, Daan Frenkel
We present a new simulation scheme based on the Lattice-Boltzmann method to simulate the dynamics of charged colloids in an electrolyte. In our model we describe the electrostatics…
Superfluid pairing in a polarized dipolar Fermi gas
M. A. Baranov, M. S. Mar'enko, Val. S. Rychkov +1
We calculate the critical temperature of a superfluid phase transition in a polarized Fermi gas of dipolar particles. In this case the order parameter is anisotropic and has a nont…
A cesium gas strongly confined in one dimension : sideband cooling and collisional properties
I. Bouchoule, M. Morinaga, D. S. Petrov +1
We study one-dimensional sideband cooling of Cesium atoms strongly confined in a far-detuned optical lattice. The Lamb-Dicke regime is achieved in the lattice direction whereas the…
Observation of Phase Fluctuations in Bose-Einstein Condensates
S. Dettmer, D. Hellweg, P. Ryytty +8
The occurrence of phase fluctuations due to thermal excitations in Bose-Einstein condensates (BECs) is studied for a variety of temperatures and trap geometries. We observe the sta…