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44 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…
Quantum phases of dipolar bosons in optical lattices
K. Goral, L. Santos, M. Lewenstein
The ground state of dipolar bosons placed in an optical lattice is analyzed. We show that the modification of experimentally accessible parameters can lead to the realization and c…
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…
Expansion of a Bose-Einstein Condensate in an atomic waveguide
L. Plaja, L. Santos
The expansion of a Bose-Einstein condensate in an atomic waveguide is analyzed. We study different regimes of expansion, and identify a transient regime between one-dimensional and…
Vortex-vortex interaction in two-component Bose-Einstein condensates
P. Ohberg, L. Santos
The vortex-vortex interaction in two-component Bose-Einstein condensates is shown to present characteristic effects not possible in single-component condensates. In particular, vor…
Performance of a 1200m long suspended Fabry-Perot cavity
A. Freise, M. M. Casey, S. Gossler +9
Using one arm of the Michelson interferometer and the power recycling mirror of the interferometric gravitational wave detector GEO600, we created a Fabry-Perot cavity with a lengt…