Traversable Wormholes and their shadows in 4D Einstein–Gauss–Bonnet Gravity: An analytic description

IF 5 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Physics of the Dark Universe Pub Date : 2025-02-01 DOI:10.1016/j.dark.2024.101793

Madhukrishna Chakraborty , Subenoy Chakraborty

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引用次数: 0

Abstract

Einstein–Gauss–Bonnet gravity (EGB) in 4D started its journey in 2020, after a regularization on

D \to 4

limit of EGB gravity considering a rescaled GB coupling constant as

\frac{α}{(D - 4)}

and taking the limit

D \to 4

by Glavan and Lin. As a result, the regularized 4D gravity theory have non trivial gravitational dynamics. The present work is an attempt to obtain solutions of 4D EGB theory in the background of static spherically symmetric space–time and it has been examined whether they correspond to any possible traversable Wormhole (WH). For matter field, isotropic/ anisotropic fluid and various possible equation of state are considered. Embedding diagrams are analyzed and energy conditions are examined for the WH solutions. Finally, feasible WH shadows have been determined in EGB theory.

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来源期刊

Physics of the Dark Universe ASTRONOMY & ASTROPHYSICS-

CiteScore

9.60

自引率

7.30%

发文量

118

审稿时长

61 days

期刊介绍： Physics of the Dark Universe is an innovative online-only journal that offers rapid publication of peer-reviewed, original research articles considered of high scientific impact. The journal is focused on the understanding of Dark Matter, Dark Energy, Early Universe, gravitational waves and neutrinos, covering all theoretical, experimental and phenomenological aspects.