Effect of temperature on the wave breaking amplitude of nonlinear relativistic strong plasma waves

IF 1.3 4区 物理与天体物理 Q3 PHYSICS, FLUIDS & PLASMAS Contributions to Plasma Physics Pub Date : 2024-08-02 DOI:10.1002/ctpp.202400075
Govind Singh Yadav, Mithun Karmakar
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Abstract

The wave‐breaking amplitude of a strong nonlinear plasma wave has been determined in a warm plasma. Pseudopotential technique has been adopted to describe the wave‐breaking phenomena in such plasma. The solution is obtained with the consideration that the phase velocity of the plasma wave is equal to the velocity of light in vacuum. This assumption is justified since the wave which is excited usually by the relativistic charged particle bunches or laser pulses has phase speed very close to the speed of light in vacuum. The investigation shows that the breaking amplitude decreases with the increase of the electron temperature. Furthermore, the wavelength of the plasma wave is seen to decrease as we increase the electron temperature. The obtained results have relevance in the astrophysical situation as well as in the field of plasma based charged particle acceleration process.
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温度对非线性相对论强等离子体波的破波幅度的影响
在暖等离子体中测定了强非线性等离子体波的破波幅度。采用伪电势技术来描述这种等离子体中的破波现象。求解时考虑到等离子体波的相位速度等于真空中的光速。这一假设是合理的,因为通常由相对论带电粒子束或激光脉冲激发的波的相位速度非常接近真空中的光速。研究表明,断裂振幅随着电子温度的升高而减小。此外,等离子体波的波长也随着电子温度的升高而减小。所获得的结果与天体物理学以及基于等离子体的带电粒子加速过程领域相关。
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来源期刊
Contributions to Plasma Physics
Contributions to Plasma Physics 物理-物理:流体与等离子体
CiteScore
2.90
自引率
12.50%
发文量
110
审稿时长
4-8 weeks
期刊介绍: Aims and Scope of Contributions to Plasma Physics: Basic physics of low-temperature plasmas; Strongly correlated non-ideal plasmas; Dusty Plasmas; Plasma discharges - microplasmas, reactive, and atmospheric pressure plasmas; Plasma diagnostics; Plasma-surface interaction; Plasma technology; Plasma medicine.
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