ZhETF, Vol. 134,
p. 862 (November 2008)
(English translation - JETP,
Vol. 107, No. 5,
available online at www.springer.com
CONTROLLING CHAOS IN A BOSE-EINSTEIN CONDENSATE LOADED INTO A MOVING OPTICAL LATTICE POTENTIAL
Wang Z., Zhan X., Shen K.
Received: April 8, 2008
PACS: 42.65.Sf, 37.10.Jk, 42.50.Md
The spatial structure of a Bose-Einstein condensate loaded into an optical lattice potential is investigated and spatially chaotic distributions of the condensates are revealed. Through changing the s-wave scattering length by using a Feshbach resonance, the chaotic behavior can be well controlled to enter into periodicity. Numerical simulation shows that there are different periodic orbits according to different s-wave scattering lengths only if the maximal Lyapunov exponent of the system is negative.