二维膨胀重力背景下的碰撞场

IF 1.8 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

International Journal of Modern Physics D Pub Date : 2023-11-08 DOI:10.1142/s0218271823500955

Mustafa Halilsoy, Chia-Li Hsieh

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引用次数: 0

摘要

[C.]的([公式:见文本])维膨胀背景几何。Callan, S. Giddings, J. Harvey和A. Strominger, Phys。Rev. D 45 (1992) R1005]承认有无限类碰撞波解。我们给出了具有有界/无界概况的真实和幽灵领域的例子。特别是，在“线域”几何中碰撞的幽灵场会产生粒子状虫洞。然而，每当支持虫洞的幽灵关闭时，虫洞就会坍缩成黑洞。最后，证明了零场的真空碰撞会产生一个不稳定的幽灵虫洞。

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Colliding fields in two-dimensional dilaton gravity background

The ([Formula: see text])-dimensional dilatonic background geometry of [C. Callan, S. Giddings, J. Harvey and A. Strominger, Phys. Rev. D 45 (1992) R1005] admits an infinite class of colliding wave solutions. We give examples from real and ghost fields with bounded/unbounded profiles. In particular, colliding ghost fields in the “lineland” geometry create particle-like wormholes. Such wormholes, however, collapse to a black hole whenever the supporting ghosts turn off. Lastly, it is shown that the vacuum collision of null fields yields a ghost wormhole which is unstable.

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来源期刊

International Journal of Modern Physics D 地学天文-天文与天体物理

CiteScore

3.80

自引率

9.10%

发文量

181

审稿时长

4-8 weeks

期刊介绍： Gravitation, astrophysics and cosmology are exciting and rapidly advancing fields of research. This journal aims to accommodate and promote this expansion of information and ideas and it features research papers and reviews on theoretical, observational and experimental findings in these fields. Among the topics covered are general relativity, quantum gravity, gravitational experiments, quantum cosmology, observational cosmology, particle cosmology, large scale structure, high energy astrophysics, compact objects, cosmic particles and radiation.