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Controlling Chaos Probability of a Bose-Einstein Condensate in a Weak Optical Superlattice |
| XU Jun1, LUO Xiao-Bing2 |
| 1Center of Experimental Teaching for Common Basic Courses, South China Agriculture University, Guangzhou 5106422Department of Physics, Jinggangshan University, Ji'an 343009 |
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| Cite this article: |
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XU Jun, LUO Xiao-Bing 2009 Chin. Phys. Lett. 26 040305 |
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Abstract The spatial chaos probability of a Bose--Einstein condensate perturbed by a weak optical superlattice is studied. It is demonstrated that the spatial chaotic solution appears with a certain probability in a given parameter region under a random boundary condition. The effects of the lattice depths and wave vectors on the chaos probability are illustrated, and different regions associated with different chaos probabilities are found. This suggests a feasible scheme for suppressing and strengthening chaos by adjusting the optical superlattice experimentally.
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| Keywords:
03.75.Lm
05.45.Gg
03.75.Kk
05.45.Yv
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Received: 12 December 2009
Published: 25 March 2009
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| PACS: |
03.75.Lm
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(Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations)
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05.45.Gg
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(Control of chaos, applications of chaos)
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03.75.Kk
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(Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow)
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05.45.Yv
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(Solitons)
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