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Quantum Effects on the Linear Dispersion Characteristics in Electron-Positron Plasma

机译:量子对电子正电子等离子体中线性色散特性的影响

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In electron-positron plasmas some of the plasma modes are decoupled due to the equal charge to mass ratio of both species. The dispersion properties of the propagation of linear waves in degenerate electron–positron magnetoplasma are investigated. By using the quantum hydrodynamic equations with magnetic fields of the Wigner–Maxwell system, we have obtained a set of new dispersion relations in which ions' motions are not considered. The general dielectric tensor is derived using the electron and positron densities and its momentum response to the quantum effects due to Bohm potential and the statistical effect of Femi temperature. It has been demonstrated the importance of magnetic field and its role with the quantum effects in these plasmas which support the propagation of electromagnetic linear waves. Besides, the dispersion relations in case of parallel and perpendicular modes are investigated for different positron-electron density ratios.
机译:在电子-正电子等离子体中,由于两种物质的电荷质量比相等,因此某些等离子体模式解耦。研究了简并的电子-正电子磁等离子体中线性波传播的色散特性。通过使用具有Wigner-Maxwell系统磁场的量子流体动力学方程,我们获得了一组新的色散关系,其中离子为 不考虑'的动作。一般的介电张量是利用电子和正电子的密度及其动量对因Bohm势引起的量子效应和Femi温度的统计效应的响应而得出的。已经证明了磁场的重要性及其在这些支持电磁线性波传播的等离子体中的量子效应中的作用。此外,研究了在不同的正电子-电子密度比下,平行和垂直模式下的色散关系。

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