偶极-偶极相互作用下双势阱中旋量玻色-爱因斯坦凝聚磁化率的非线性动力学性质

Nonlinear dynamical properties of susceptibility of a spinor Bose-Einstein condensate with dipole-dipole in teractionin a double-well potential

利用平均场理论和单空间模近似,研究了偶极-偶极相互作用下双势阱中总自旋F=1的旋量玻色-爱因斯坦凝聚磁化率的非线性动力学性质.在给定的初态条件下,研究结果表明:当λA+2λd=0时,凝聚体只表现为磁化振荡行为;当λA+2λd≠0时,凝聚体既存在磁化振荡行为,又存在磁自陷俘现象.

Based on mean-field theory and single spatial mode approximation, we study the nonlinear dynamical properties of the susceptibility of total spin F = 1 Bose-Einstein condensate with dipole-dipole interaction in a double-well potential. For certain initial states, we find that the susceptibility oscillation appears when λA＋ 2λd= 0. When λA＋2λd≠0, the dynamical behavior of the system shows both oscillation and self-trapping of susceptibility.