Collective excitation of a Bose-Einstein condensate by modulation of the atomic scattering length
arXiv:1004.2887 · doi:10.1103/PhysRevA.81.053627
Abstract
We excite the lowest-lying quadrupole mode of a Bose-Einstein condensate by modulating the atomic scattering length via a Feshbach resonance. Excitation occurs at various modulation frequencies, and resonances located at the natural quadrupole frequency of the condensate and at the first harmonic are observed. We also investigate the amplitude of the excited mode as a function of modulation depth. Numerical simulations based on a variational calculation agree with our experimental results and provide insight into the observed behavior.
Submitted to PRA
References in corpus (4)
- Precision Measurements of Collective Oscillations in the BEC-BCS Crossover
- Phase Coherence and Superfluid-Insulator Transition in a Disordered Bose-Einstein Condensate
- Collective oscillations of a Fermi gas in the unitarity limit: Temperature effects and the role of pair correlations
- Generation of nonground-state Bose-Einstein condensates by modulating atomic interactions
Cited by in corpus (11)
- Ultracold Lattice Gases with Periodically Modulated Interactions
- Faraday waves in binary non-miscible Bose-Einstein condensates
- Nonlinear Bose-Einstein-condensate Dynamics Induced by a Harmonic Modulation of the s-wave Scattering Length
- Geometric Resonances in Bose-Einstein Condensates with Two- and Three-Body Interactions
- Formation of granular structures in trapped Bose-Einstein condensates under oscillatory excitations
- Stability of Logarithmic Bose-Einstein Condensate in Harmonic Trap
- Vector rogue waves and dark-bright boomeronic solitons in autonomous and non-autonomous settings
- Groundstate and Collective Modes of a Spin-Polarized Dipolar Bose-Einstein Condensate in a Harmonic Trap
- Super Bloch oscillations with modulated interaction
- Fast Converging Path Integrals for Time-Dependent Potentials II: Generalization to Many-body Systems and Real-Time Formalism
- Quadrature interferometry for nonequilibrium ultracold bosons in optical lattices