Critical behavior in 3D gravitational collapse of massless scalar fields
Critical behavior in 3D gravitational collapse of massless scalar fields
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DOI：
10.1103/physrevd.99.024018
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发表时间：
2018-02
影响因子：
5
通讯作者：
N. Deppe;Lawrence E. Kidder;M. Scheel;S. Teukolsky
中科院分区：
文献类型：
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作者：
N. Deppe;Lawrence E. Kidder;M. Scheel;S. Teukolsky
我们介绍了在没有对称性假设的情况下，对三维引力崩塌中的临界行为的研究结果。引力场的来源是一个无质量的标量场。这是一个经过充分研究的球对称引力崩塌的例子，使我们能够理解模拟的可靠性和准确性。我们同时研究超临界和亚临界演化，看看其中一种是否提供了比另一种更准确的结果。我们发现，即使对于L=2球谐振子中的次方为35%的非球面初值，其临界解也与球对称中的相同。
We present results from a study of critical behavior in 3D gravitational collapse with no symmetry assumptions. The source of the gravitational field is a massless scalar field. This is a well-studied case for spherically symmetric gravitational collapse, allowing us to understand the reliability and accuracy of the simulations. We study both supercritical and subcritical evolutions to see if one provides more accurate results than the other. We find that even for nonspherical initial data with 35% of the power in the l=2 spherical harmonic, the critical solution is the same as in spherical symmetry.