黑洞微扰理论中的非模态效应:瞬态超辐射

IF 5.5 1区 物理与天体物理 Q1 Physics and Astronomy
Javier Carballo, Christiana Pantelidou, Benjamin Withers
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引用次数: 0

摘要

研究了在线性扰动下黑洞时空的非模态稳定性。我们证明了尽管线性扰动的渐近衰减,但在有限时间内可以发生大幅度增长。在给出的例子中,物理机制是一种瞬态的超辐射形式,并且在性质上类似于在Navier-Stokes剪切流中过渡到湍流。作为构建的一部分,我们提供了QNM能量正性的一个定理,并引入了一个不受收敛问题影响的截断哈密顿方法来处理黑洞伪谱。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Non-modal effects in black hole perturbation theory: transient superradiance

We study the non-modal stability of black hole spacetimes under linear perturbations. We show that large-amplitude growth can occur at finite time, despite asymptotic decay of linear perturbations. In the example presented, the physical mechanism is a transient form of superradiance, and is qualitatively similar to the transition to turbulence in Navier-Stokes shear flows. As part of the construction we provide a theorem for the positivity of QNM energies, and introduce a truncated-Hamiltonian approach to black hole pseudospectra which does not suffer from convergence issues.

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来源期刊
Journal of High Energy Physics
Journal of High Energy Physics 物理-物理:粒子与场物理
CiteScore
10.30
自引率
46.30%
发文量
2107
审稿时长
1.5 months
期刊介绍: The aim of the Journal of High Energy Physics (JHEP) is to ensure fast and efficient online publication tools to the scientific community, while keeping that community in charge of every aspect of the peer-review and publication process in order to ensure the highest quality standards in the journal. Consequently, the Advisory and Editorial Boards, composed of distinguished, active scientists in the field, jointly establish with the Scientific Director the journal''s scientific policy and ensure the scientific quality of accepted articles. JHEP presently encompasses the following areas of theoretical and experimental physics: Collider Physics Underground and Large Array Physics Quantum Field Theory Gauge Field Theories Symmetries String and Brane Theory General Relativity and Gravitation Supersymmetry Mathematical Methods of Physics Mostly Solvable Models Astroparticles Statistical Field Theories Mostly Weak Interactions Mostly Strong Interactions Quantum Field Theory (phenomenology) Strings and Branes Phenomenological Aspects of Supersymmetry Mostly Strong Interactions (phenomenology).
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