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Pulse duration constraint of whistler waves in magnetized dense plasma
Physical Review E ( IF 2.4 ) Pub Date : 2021-09-17 , DOI: 10.1103/physreve.104.035205 Masayasu Hata 1, 2 , Takayoshi Sano 1 , Yasuhiko Sentoku 1 , Hideo Nagatomo 1 , Hitoshi Sakagami 3
Physical Review E ( IF 2.4 ) Pub Date : 2021-09-17 , DOI: 10.1103/physreve.104.035205 Masayasu Hata 1, 2 , Takayoshi Sano 1 , Yasuhiko Sentoku 1 , Hideo Nagatomo 1 , Hitoshi Sakagami 3
Affiliation
Interactions between large-amplitude laser light and strongly magnetized dense plasma have been investigated by one- and two-dimensional electromagnetic particle-in-cell simulations. Since whistler waves have no critical density, they can propagate through plasmas beyond the critical density in principle. However, we have found the propagation of whistler waves is restricted significantly by the stimulated Brillouin scattering. It is confirmed that the period during which the whistler wave can propagate in overcritical plasmas is proportional to the growth time of the ion-acoustic wave via the Brillouin instability. The allowable pulse duration of the whistler wave has a power-law dependence on the amplitude of the whistler wave and the external magnetic field.
中文翻译:
磁化致密等离子体中惠斯勒波的脉宽约束
已经通过一维和二维电磁粒子细胞内模拟研究了大振幅激光与强磁化致密等离子体之间的相互作用。由于惠斯勒波没有临界密度,原则上它们可以在超过临界密度的等离子体中传播。然而,我们发现惠斯勒波的传播受到受激布里渊散射的显着限制。证实了惠斯勒波在超临界等离子体中传播的周期与离子声波通过布里渊不稳定性的生长时间成正比。哨声波的允许脉冲持续时间对哨声波的幅度和外部磁场具有幂律依赖性。
更新日期:2021-09-17
中文翻译:
磁化致密等离子体中惠斯勒波的脉宽约束
已经通过一维和二维电磁粒子细胞内模拟研究了大振幅激光与强磁化致密等离子体之间的相互作用。由于惠斯勒波没有临界密度,原则上它们可以在超过临界密度的等离子体中传播。然而,我们发现惠斯勒波的传播受到受激布里渊散射的显着限制。证实了惠斯勒波在超临界等离子体中传播的周期与离子声波通过布里渊不稳定性的生长时间成正比。哨声波的允许脉冲持续时间对哨声波的幅度和外部磁场具有幂律依赖性。