The paper addresses counterintuitive behavior of electrons injected into dense cryogenic media with negative scattering length a₀. Instead of expected polaronic effect (formation of density enhancement clusters) which should substantially reduce the electron mobility, an opposite picture is observed: with increasing |a₀| (the trend taking place for inert gases with the growth of atomic number) and the medium density, the electrons remain practically free. An explanation of this behavior is provided based on consistent accounting for the non-linearity of electron interaction with the gaseous medium in the gas atom number density.
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机译:本文讨论了以负的散射长度a with注入致密的低温介质中的电子的反直觉行为。观察到相反的情况,而不是预期的极化效应(形成密度增强簇)会大大降低电子迁移率:| a ||增大(惰性气体随着原子序数的增长而发生的趋势)和中等密度,电子实际上保持自由。基于一致考虑到电子与气体介质在气体原子序数密度中的非线性关系,对此行为提供了解释。
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