Abstract In this paper, we study the second harmonic generation and its interaction with the fundamental mode in a magnetised dense positron-ion plasma interacting with laser pulses. It has been shown that different harmonics propagate with different phase velocities. The gradual evolution of the fundamental wave into higher harmonics is studied, and the conversion efficiency is calculated. Dependence of conversion efficiency on wavenumber shifts and the applied magnetic field has also been examined.

中文翻译：

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量子等离子体中正电子声波的基波和高次谐波之间的共振相互作用

摘要 在本文中，我们研究了与激光脉冲相互作用的磁化致密正电子离子等离子体中二次谐波的产生及其与基模的相互作用。已经表明，不同的谐波以不同的相速度传播。研究了基波向高次谐波的逐渐演化，并计算了转换效率。还研究了转换效率对波数位移和外加磁场的依赖性。