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arXiv 1706.07413gr-qchep-th
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使用OpenCL开放源代码的AdS中的标量崩溃

Scalar collapse in AdS with an OpenCL open source code

Steven L. Liebling, Gaurav Khanna

摘要:

我们研究了球对称的反德西特时空中的标量场的崩溃,使用一个新构建的,开源的代码,使用开放标准OpenCL的异构体系结构并行化。这种情况下的一个悬而未决的问题是,如何先验地判断某种形式的初始数据是稳定的,还是在湍流不稳定性下发展成振幅消失的极限下的黑洞。以前的工作建议存在的岛屿周围的准周期解的稳定性,我们使用这个新的代码来检查近似准周期的解决方案,平衡能量转移到更高的模式与能量转移到较低的模式的稳定性。演化提供了一些证据,但不是决定性的,稳定的初始数据足够接近准周期解。

英文摘要:

We study the spherically symmetric collapse of a scalar field in anti-de Sitter spacetime using a newly constructed, open-source code which parallelizes over heterogeneous architectures using the open standard OpenCL. An open question for this scenario concerns how to tell, a priori, whether some form of initial data will be stable or will instead develop under the turbulent instability into a black hole in the limit of vanishing amplitude. Previous work suggested the existence of islands of stability around quasiperiodic solutions, and we use this new code to examine the stability properties of approximately quasiperiodic solutions which balance energy transfer to higher modes with energy transfer to lower modes. The evolutions provide some evidence, though not conclusively, for stability of initial data sufficiently close to quasiperiodic solutions.

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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