Faraday Patterns in Bose-Einstein Condensates
Kęstutis StaliūnasPhysikalisch Technische Bundesanstalt, Bundesallee 100, D-38116 Braunschweig, GermanyStefano LonghiINFM and Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, I-20133 Milano, ItalyGermán J. de ValcárcelDepartament d’Òptica, Universitat de València, Dr. Moliner 50, E-46100 Burjassot, Spain
2002en
ABI
Annotatsiya
Temporal periodic modulation of the interatomic s-wave scattering length in Bose-Einstein condensates is shown to excite subharmonic patterns in the atom density through a parametric resonance. The dominant wavelength of the spatial structures is primarily selected by the excitation frequency but also affected by the depth of the spatial modulation via a nonlinear resonance. These phenomena represent analogues of the Faraday patterns excited in vertically vibrated liquids.
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