Faraday waves in Bose–Einstein condensates with engineering three-body interactions

Abdullaev, Fatkhulla and Gammal, A and Tomio, Lauro (2015) Faraday waves in Bose–Einstein condensates with engineering three-body interactions. Journal of Physics B: Atomic, Molecular and Optical Physics, 49 (2). pp. 1-12. ISSN 0953-4075

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Abstract

We consider Bose–Einstein condensates with two- and three-body interactions periodically varying in time. Two models of time-dependent three-body interactions, with quadratic and quartic dependence on the two-body atomic scattering length as, are studied. It is shown that parametric instabilities in the condensate lead to the generation of Faraday waves (FWs), with wavelengths depending on the background scattering length, as well as on the frequency and amplitude of the modulations of as. From an experimental perspective, this opens a new possibility to tune the period of Faraday patterns by varying not only the frequency of modulations and background scattering length, but also the amplitude of the modulations. The latter effect can be used to estimate the parameters of three-body interactions from the FW experimental results. Theoretical predictions are confirmed by numerical simulations of the corresponding extended Gross–Pitaevskii equation.

Item Type:	Article (Journal)
Additional Information:	7021/47594
Uncontrolled Keywords:	Bose–Einstein condensate, Faraday waves, dynamic properties of condensates, BEC in periodic nonlinear potentials
Subjects:	Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Physics
Depositing User:	Prof Fatkhulla Abdullaev
Date Deposited:	14 Jan 2016 08:31
Last Modified:	21 Oct 2017 08:41
URI:	http://irep.iium.edu.my/id/eprint/47594

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