ABSTRACT It is shown, within classical mechanics, that the field of an electromagnetic vortex is capable of capturing and guiding neutral molecules endowed with a permanent electric dipole moment (PEDM). Similarly as in the case of the magnetic field applied to elementary particles or atoms, this effect turns out to be very delicate because of the small values of PEDM observed in real molecules. They amount to (electron charge × fermi) or less, which requires the use of very strong electric fields (reaching ). It has also been observed that there exists a threshold in field strength above which the particles are ejected from the trap. Trajectories of guided particles are usually quite chaotic, which is a consequence of non-linearity of the equations of motion. With a very special and precise adjustment of parameters, a regular (i.e. circular, in the transverse plane) trajectory can be obtained. The presence of an additional constant electric field pointing along the direction of the wave propagation might help to achieve the necessary tuning and realize such trajectories.

中文翻译：

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通过电磁涡流场引导中性极性分子

摘要 经典力学表明，电磁涡旋场能够捕获和引导具有永久电偶极矩 (PEDM) 的中性分子。与对基本粒子或原子施加磁场的情况类似，由于在实际分子中观察到的 PEDM 值很小，因此这种效果非常微妙。它们等于（电子电荷 × 费米）或更少，这需要使用非常强的电场（达到 ）。还观察到存在场强阈值，高于该阈值，粒子会从陷阱中弹出。被引导粒子的轨迹通常非常混乱，这是运动方程非线性的结果。通过非常特殊和精确的参数调整，定期（即圆形、在横向平面）轨迹可以得到。沿波传播方向指向的附加恒定电场的存在可能有助于实现必要的调谐并实现此类轨迹。