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Journal of Experimental and Theoretical Physics

Controlling chaos in the Bose-Einstein condensate system of a double lattice

Zhixia Wang, Zhengguo Ni, Fuzhong Cong, Xue‐Shen Liu, Lei Chen

Published Feb 1, 2011• 2 citations
Publisher

Abstract

We study the chaotic dynamics in the Bose-Einstein condensate (BEC) system of a double lattice. Chaotic space-time evolution is investigated for the particle number density in a BEC. By changing of the s -wave scattering length with a Feshbach resonance, the chaotic behavior can be well controlled to enter into periodicity. Numerical calculation shows that there is periodic orbit according to the s -wave scattering length only if the maximal Lyapunov exponent of the system is negative.

DOI
10.1134/s1063776111010171

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We study the chaotic dynamics in the Bose-Einstein condensate (BEC) system of a double lattice. Chaotic space-time evolution is investigated for the particle number density in a BEC. By changing of the s -wave scattering length with a Feshbach resonance, the chaotic behavior can be well controlled to enter into periodicity. Numerical calculation shows that there is periodic orbit according to the s -wave scattering length only if the maximal Lyapunov exponent of the system is negative.
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