Ioffe阱中的磁场结构

介绍了Ioffe阱的结构,借助毕奥*萨伐尔定律,对阱中的磁场构成进行了研究,得出了磁场的精确表达式.在许多理论研究中,中性粒子在阱中被囚禁的区域通常是近原点的,因此,一个多项式展开的技巧被利用,从而得到近原点条件下,理想Ioffe阱中场的近似表达,以便于进一步研究中性粒子在阱中的经典运动特性及量子运动特性.为此,简要讨论了具有磁矩的中性粒子在此阱中的相互作用势,并导出了在一定的近似条件下粒子的经典运动方程.

The Field Structure of the Ioffe Trap

Studies the field structure of the Ioffe trap and described its features with both the exact expression and a multipole polynomial expansion that facilitates studies of symmetry properties and classical or quantum orbits. As a discussion, we study the interaction potential energy between the neutral particle with magnetic moment μ and the idealized Ioffe trap and derive the classical motion equation of the neutral particle.