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Mobility in a strongly coupled dusty plasma

机译:强耦合尘埃等离子体中的流动性

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摘要

A dusty plasma is a four-component mixture of micron-size particles of solid matter, ions, electrons, and neutral gas. The solid particles, or “dust,” are typically polymer microspheres of a precise size. They become highly charged by collecting more electrons than ions, so that they interact among themselves with large Coulomb potentials. They can act as a “strongly coupled plasma,” meaning that their Coulomb interparticle potentials greatly exceed their thermal kinetic energies. For this reason, the collection of dust particles can act cooperatively like molecules in a liquid.
机译:尘土等离子体是由四微米大小的固体物质,离子,电子和中性气体组成的混合物。固体颗粒或“粉尘”通常是精确尺寸的聚合物微球。它们通过收集比离子更多的电子而变得高度带电,因此它们彼此之间以大的库仑电势相互作用。它们可以充当“强耦合等离子体”,这意味着它们的库仑粒子间电势大大超过其热动能。因此,灰尘颗粒的收集可以像液体中的分子一样协同作用。

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