arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1004.3181physics.plasm-ph
收藏

磁化量子等离子体中的双层激波

Double-layer shocks in a magnetized quantum plasma

A. P. Misra, S. Samanta

摘要:

本文报道了在量子电子-正电子-离子(e-p-i)等离子体中,量子离子声波(QIAWs)斜向于外磁场传播时,有限幅静电激波的形成。这样的冲击被认为是由压缩和伴随的稀疏慢波阵面的双层(DL)结构。这种DL冲击的存在关键取决于量子耦合参数$H$与玻姆势和正电子电子密度比$δ$。然而,配置文件可能会,陡峭的初始和达到稳定状态的一些孤立波的前面的冲击。这种新的DL冲击可能是强激光-固体密度等离子体相互作用实验以及紧凑天体物理物体中粒子加速的良好候选者,例如,磁化的白矮星。

英文摘要:

The formation of small but finite amplitude electrostatic shocks in the propagation of quantum ion-acoustic waves (QIAWs) obliquely to an external magnetic field is reported in a quantum electron-positron-ion (e-p-i) plasma. Such shocks are seen to have double-layer (DL) structures composed of the compressive and accompanying rarefactive slow-wave fronts. Existence of such DL shocks depends critically on the quantum coupling parameter $H$ associated with the Bohm potential and the positron to electron density ratio $δ$. The profiles may, however, steepen initially and reach a steady state with a number of solitary waves in front of the shocks. Such novel DL shocks could be a good candidate for particle acceleration in intense laser-solid density plasma interaction experiments as well as in compact astrophysical objects, e.g., magnetized white dwarfs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑