论文标题
高频等离子体振荡的线性对创建阻尼
Linear pair creation damping of high frequency plasma oscillation
论文作者
论文摘要
我们研究了基于Dirac-Heisenberg-Wigner形式主义的高度密度的Langmuir波的线性分散关系。对物理可观察物的真空贡献导致超紫罗莱夹的差异，这些偏见是通过电荷重新归一化来消除的。其余的真空贡献很小，并且与时间依赖性真空极化的先前得出的表达式一致。该理论的主要新特征是一种类似于Landau阻尼的阻尼机制，但是等离子体能引起了电子旋质对的产生。分析了阻尼率（配对创造速率）对波数，温度和密度的依赖性。最后，比较线性化理论的分析结果。
We have studied the linear dispersion relation for Langmuir waves in plasmas of very high density, based on the Dirac-Heisenberg-Wigner formalism. The vacuum contribution to the physical observables leads to ultra-violet divergences, that are removed by a charge renormalization. The remaining vacuum contribution is small, and is in agreement with previously derived expressions for the time-dependent vacuum polarization. The main new feature of the theory is a damping mechanism similar to Landau damping, but where the plasmon energy give rise to creation of electron-positron pairs. The dependence of the damping rate (pair-creation rate) on wave-number, temperature, and density is analyzed. Finally, the analytical results of linearized theory are compared.
