莫里斯-索恩虫洞度量中的耗散引力坍缩动力学:一种情景--几种结果

IF 3 3区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY Annals of Physics Pub Date : 2024-09-07 DOI:10.1016/j.aop.2024.169789
Subhasis Nalui, Subhra Bhattacharya
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引用次数: 0

摘要

我们考虑了具有辐射热流的动力学莫里斯-索恩度量。通过将内部莫里斯-索恩公设与外部韦迪雅公设相匹配,我们为相应的球面对称不均匀物质分布追踪出了坍缩解。得到的解大致有四种不同类型,给出了不同的终态动力学。针对其中三种解,我们详细阐述了莫里斯-索恩型演化虫洞的坍缩动力学。我们证明,在有限时间内坍缩到零适当体积的所有情况下,随之而来的奇点总是黑洞类型。然而,我们的解决方案也可以显示其他最终状态,如振荡虫洞-黑洞对或无限时间收缩宇宙或过去物质占主导地位的共形宇宙。在所有这些情况下,我们都研究出了解决方案的背景动力学和物理学。我们的所有解决方案都配有适当的图解说明。
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Dynamics of dissipative gravitational collapse in the Morris–Thorne wormhole metric: One scenario - several outcomes

We consider the dynamical Morris–Thorne metric with radiating heat flow. By matching the interior Morris–Thorne metric with an exterior Vaidya metric we trace out the collapse solutions for the corresponding spherically symmetric inhomogeneous distribution of matter. The solutions obtained are broadly of four different types, giving different end state dynamics. Corresponding to three of the solutions we elaborate the collapsing dynamics of the Morris–Thorne type evolving wormhole. We show that for all those cases where collapse upto zero proper volume is obtained in finite time, the ensuing singularity is always a black hole type. However our solutions can also show other end states, like oscillating wormhole-black hole pair or infinite time contracting universe or a conformal past matter dominated universe. In all the cases we have worked out the background dynamics and physics of the solution. All our solutions are illustrated with appropriate graphical descriptions.

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来源期刊
Annals of Physics
Annals of Physics 物理-物理:综合
CiteScore
5.30
自引率
3.30%
发文量
211
审稿时长
47 days
期刊介绍: Annals of Physics presents original work in all areas of basic theoretic physics research. Ideas are developed and fully explored, and thorough treatment is given to first principles and ultimate applications. Annals of Physics emphasizes clarity and intelligibility in the articles it publishes, thus making them as accessible as possible. Readers familiar with recent developments in the field are provided with sufficient detail and background to follow the arguments and understand their significance. The Editors of the journal cover all fields of theoretical physics. Articles published in the journal are typically longer than 20 pages.
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