电荷不对称二维二分量等离子体中短距离的类电荷吸引：精确结果
Like-charge attraction at short distances in a charge-asymmetric two-dimensional two-component plasma: Exact results
摘要：
精确地确定了由带正电荷（$q_1 = +1$）和带负电荷（$q_2 = -1/2$）的点粒子组成的二维双组分电荷不对称等离子体中两个“客体”电荷之间的短程有效电势.结果是有效的整个政权的稳定性，其中库仑耦合（无量纲逆温度）$β<4$。在高库仑耦合$β>2$，该模型的特点是类似的电荷吸引。此外，在短距离内，相反电荷之间不可能有排斥力，这与长距离相互作用不同。
英文摘要：
We determine exactly the short-distance effective potential between two "guest" charges immersed in a two-dimensional two-component charge-asymmetric plasma composed of positively ($q_1 = +1$) and negatively ($q_2 = -1/2$) charged point particles. The result is valid over the whole regime of stability, where the Coulombic coupling (dimensionless inverse temperature) $β<4$. At high Coulombic coupling $β>2$, this model features like-charge attraction. Also, there cannot be repulsion between opposite-charges at short-distances, at variance with large-distance interactions.
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