Elastic scattering of a Bose-Einstein condensate at a potential landscape

Abstract

We investigate the elastic scattering of Bose-Einstein condensates at shallow periodic and disorder potentials. We show that the collective scattering of the macroscopic quantum object couples to internal degrees of freedom of the Bose-Einstein condensate such that the Bose-Einstein condensate gets depleted. As a precursor for the excitation of the Bose-Einstein condensate we observe wave chaos within a mean-field theory.

10 pages, 5 figures

References in corpus (10)

• Many-Body Physics with Ultracold Gases
• Direct observation of Anderson localization of matter-waves in a controlled disorder
• The multi-configurational time-dependent Hartree method for bosons: Many-body dynamics of bosonic systems
• Anderson Localization of Expanding Bose-Einstein Condensates in Random Potentials
• Role of excited states in the splitting dynamics of interacting Bose-Einstein condensates when ramping-up a barrier
• Reduced density matrices and coherence of trapped interacting bosons
• The crossover from strong to weak chaos for nonlinear waves in disordered systems
• Localization of Bogoliubov quasiparticles in interacting Bose gases with correlated disorder
• Wave chaos as signature for depletion of a Bose-Einstein condensate
• Wave chaos in the non-equilibrium dynamics of the Gross-Pitaevskii equation

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• Phases, many-body entropy measures and coherence of interacting bosons in optical lattices
• Many-body physics in two-component Bose-Einstein condensates in a cavity: fragmented superradiance and polarization
• Nonlinear Lattice Waves in Random Potentials
• Many-body excitation spectra of trapped bosons with general interaction by linear response
• Uncertainty product of an out-of-equilibrium Bose-Einstein condensate
• Spatially partitioned many-body vortices