ZhETF, Vol. 139,
No. 2,
p. 408 (February 2011)
(English translation - JETP,
Vol. 112, No. 2,
p. 355,
February 2011
available online at www.springer.com
)
CONTROLLING CHAOS IN THE BOSE-EINSTEIN CONDENSATE SYSTEM OF A DOUBLE LATTICE
Wang Z., Ni Z., Cong F., Liu X., Chen L.
Received: July 27, 2010
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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