In a two-dimensional, two-component plasma, the second moment of the density correlation function has the simple value {12 pi[1 - (Gamma/4)](2)}(-1), where Gamma is the dimensionless coupling constant. This result is derived by using analogies with critical systems. [References: 12]
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机译：在二维，两组分等离子体中，密度相关函数的第二阶矩具有简单值{12 pi [1-（Gamma / 4）]（2）}（-1），其中Gamma是无量纲耦合不变。通过与关键系统进行类比得出此结果。 [参考：12]
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