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arXiv 1201.6571physics.plasm-ph
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量子等离子体中的场致简并区

Field-Induced Degeneracy Regimes in Quantum Plasmas

M. Akbari-Moghanjoughi

摘要:

结果表明,在电子轨道被量子化的简并磁化费米-狄拉克等离子体中,存在着不同的量子流体力学极限,其中非线性密度波表现出不同的行为。简并电子间的库仑相互作用对静电非线性波动力学的影响在基态朗道量子化或所谓的量子极限($l=0$)下比在经典极限($l=\infty$)下更为显著。在经典极限等离子体中,有效电子量子势与数密度和简并压力不同,与外加磁场无关,而在量子极限等离子体中,有效电子量子势强烈依赖于磁场强度.目前的研究结果在任意高磁化天体物理和实验室致密等离子体中的波动动力学研究中同样重要。

英文摘要:

It is shown that in degenerate magnetized Fermi-Dirac plasma where the electron-orbital are quantized distinct quantum hydrodynamic (QHD) limits exist in which the nonlinear density waves behave differently. The Coulomb interaction among degenerate electrons affect the electrostatic nonlinear wave dynamics more significant in the ground-state Landau quantization or the so-called quantum-limit ($l=0$) rather than in the classical-limit ($l=\infty$). It is also remarked that the effective electron quantum potential unlike the number-density and degeneracy pressure is independent of the applied magnetic field in the classical-limit plasma, while, it depends strongly on the field strength in the quantum-limit. Current findings are equally important in the study of wave dynamics in arbitrarily-high magnetized astrophysical and laboratory dense plasmas.

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。

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