稀等离子体中高电荷态离子:强耦合的精确渐近解
Highly Charged Ions in a Dilute Plasma: An Exact Asymptotic Solution Involving Strong Coupling
摘要:
很久以前由Salpeter引入的离子球模型被置于严格的理论环境中。非常高的电荷,但稀离子在热平衡与弱耦合,一个组件的背景等离子体模型的主要修正明确计算,和subleading的修正显示是微不足道的小。这是使用布朗和亚菲倡导的有效场论方法来完成的。因此,可以精确地计算对这种高电荷离子可能经历的核反应速率的校正。此外,它们对状态方程的贡献也可以精确计算。这样的分析结果非常强的耦合是罕见的,他们可以作为基准测试计算机模型在这个限制。
英文摘要:
The ion sphere model introduced long ago by Salpeter is placed in a rigorous theoretical setting. The leading corrections to this model for very highly charged but dilute ions in thermal equilibrium with a weakly coupled, one-component background plasma are explicitly computed, and the subleading corrections shown to be negligibly small. This is done using effective field theory methods advocated by Brown and Yaffe. Thus, corrections to nuclear reaction rates that such highly charged ions may undergo can be computed precisely. Moreover, their contribution to the equation of state can also be computed with precision. Such analytic results for very strong coupling are rarely available, and they can serve as benchmarks for testing computer models in this limit.
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