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arXiv 2302.06216physics.plasm-phcond-mat.str-el
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量子等离子体中含时带电粒子停止:准一维系统的G1-G2方案检验

Time-dependent charged particle stopping in quantum plasmas: testing the G1-G2 scheme for quasi-one-dimensional systems

C. Makait, F. Borges Fajardo, M. Bonitz

摘要:

温暖的致密物质-一种介于固体和等离子体相之间的奇异的高度压缩状态,目前引起人们的高度兴趣,特别是对于紧凑的天体物理物体、高压实验室系统和惯性约束聚变。对于许多应用,量子等离子体与高能粒子的相互作用是至关重要的。此外,该系统往往被驱动远远脱离平衡。在这种情况下,人们对与时间相关的模拟非常感兴趣,以了解物理学,特别是在热化过程中。最近提出了一种新的多粒子技术G1-G2方案[N. Schlünzen等人,物理修订信函\textbf{124},076601(2020)],其允许相互作用量子系统的时间演化的第一原理模拟。在这里,我们将此方案应用到空间均匀的稠密量子等离子体(jeldom),并探讨其性能。为此,G1-G2格式转换为动量表示,并提出了准一维模型系统的第一个结果。

英文摘要:

Warm dense matter--an exotic, highly compressed state on the boarder between solid and plasma phases is of high current interest, in particular for compact astrophysical objects, high pressure laboratory systems, and inertial confinement fusion. For many applications the interaction of quantum plasmas with energetic particles is crucial. Moreover, often the system is driven far out of equilibrium. In that case, there is high interest in time-dependent simulations to understand the physics, in particular, during thermalization. Recently a novel many-particle technique, the G1--G2 scheme was presented [N. Schlünzen et al., Phys. Rev. Lett. \textbf{124}, 076601 (2020)] which allows for first-principle simulations of the time evolution of interacting quantum systems. Here we apply this scheme to a spatially uniform dense quantum plasma (jellium) and explore its performance. To this end the G1-G2 scheme is transformed into momentum representation, and first results are presented for a quasi-one-dimensional model system.

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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