%A Wang Zhi-Xia, Zhang Xi-He, Shen Ke
%T Hyperchaos of two coupled Bose--Einstein condensates with a three-body interaction
%0 Journal Article
%D 2008
%J Chin. Phys. B
%R 10.1088/1674-1056/17/9/021
%P 3270-3275
%V 17
%N 9
%U {http://cpb.iphy.ac.cn/CN/abstract/article_23374.shtml}
%8 2008-09-08
%X We investigate the dynamics of two tunnel-coupled Bose--Einstein
condensates (BECs) in a double-well potential. The effects of the
three-body recombination loss and the feeding of the condensates
from the thermal cloud are studied in the case of attractive
interatomic interaction. An imaginary three-body interaction term is
considered and a two-mode approximation is used to derive three
coupled equations which describe the total atomic numbers of the two
condensates, the relative population and relative phase
respectively. Theoretical analyses and numerical calculations
demonstrate the existence of chaotic and hyperchaotic behaviour by
using a periodically time-varying scattering length.