实验室坐标系中超冷分子的圆锥相交
Conical intersections in laboratory coordinates with ultracold molecules
摘要：
对于作为外部磁场的函数交叉的两个相反宇称的状态，添加电场将打破对称性并诱导避免交叉。场的适当布置可用于创建作为外部空间坐标的函数的圆锥形交叉。我们考虑了超冷极性分子的几何相位效应。对于平均场近似下的玻色-爱因斯坦凝聚体，几何相位效应诱导了具有半整数量子化角动量的持续超流稳定态.
英文摘要：
For two states of opposite parity that cross as a function of an external magnetic field, the addition of an electric field will break the symmetry and induce an avoided crossing. A suitable arrangement of fields may be used to create a conical intersection as a function of external spatial coordinates. We consider the effect of the resulting geometric phase for ultracold polar molecules. For a Bose-Einstein condensate in the mean-field approximation, the geometric phase effect induces stable states of persistent superfluid flow that are characterized by half-integer quantized angular momentum.
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