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APS » Journals » Phys. Rev. Lett. » Volume 89 » Issue 21
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Phys. Rev. Lett. 89, 210406 (2002) [4 pages]

Faraday Patterns in Bose-Einstein Condensates

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Kestutis Staliunas1,*, Stefano Longhi2,†, and Germán J. de Valcárcel3,‡
1Physikalisch Technische Bundesanstalt, Bundesallee 100, D-38116 Braunschweig, Germany
2INFM and Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, I-20133 Milano, Italy
3Departament d’Òptica, Universitat de València, Dr. Moliner 50, E-46100 Burjassot, Spain

Received 24 April 2002; published 4 November 2002

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.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.89.210406
DOI:
10.1103/PhysRevLett.89.210406
PACS:
03.75.Fi, 05.45.–a, 47.54.+r

*Email address: kestutis.staliunas@ptb.de

†Email address: longhi@fisi.polimi.it

‡Email address: german.valcarcel@uv.es

 
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