Crossed electric and magnetic fields influence dipolar neutral particles in the same way as the magnetic field influences charged particles. The effect of crossed fields is proportional to the dipole moment of the particle (inherent or induced). We show that this effect is quite spectacular in a multilayer system of polar molecules. In this system molecules may bind in chains. At low temperature the gas of chains becomes the superfluid one. The crossed fields then induce vortices in the superfluid gas of chains. The density of vortices is proportional to the number of particles in the chain. The effect can be used for monitoring the formation and destruction of chains in multilayer dipolar gases.

中文翻译：

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交叉电场和磁场中偶极链超流体气体中的涡流产生

交叉的电场和磁场影响偶极中性粒子的方式与磁场影响带电粒子的方式相同。交叉场的影响与粒子的偶极矩（固有的或感应的）成正比。我们表明这种效应在极性分子的多层系统中非常壮观。在这个系统中，分子可以链式结合。在低温下，链的气体变成超流体。交叉场然后在链的超流体气体中引起涡流。漩涡的密度与链中的粒子数成正比。该效应可用于监测多层偶极气体中链的形成和破坏。