用最佳推进框架加速相对论系统的模拟
Speeding up simulations of relativistic systems using an optimal boosted frame
摘要：
对于某一类系统，在洛伦兹提升坐标系中进行计算机模拟在计算上是有利的。然而，即使计算机模型依赖于一个协变方程组，它已被指出，相关的离散化误差的算法困难可能必须克服，以充分利用潜在的加速。我们总结了研究结果，困难和他们的解决方案，并表明，该技术使模拟重要的几个领域的加速器物理，否则有问题，包括自洽建模在三维激光尾场加速器阶段的能量为10 GeV及以上。
英文摘要：
It can be computationally advantageous to perform computer simulations in a Lorentz boosted frame for a certain class of systems. However, even if the computer model relies on a covariant set of equations, it has been pointed out that algorithmic difficulties related to discretization errors may have to be overcome in order to take full advantage of the potential speedup. We summarize the findings, the difficulties and their solutions, and show that the technique enables simulations important to several areas of accelerator physics that are otherwise problematic, including self-consistent modeling in three-dimensions of laser wakefield accelerator stages at energies of 10 GeV and above.
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