论 f(R,T)-formalism 内 R2 引力中卡尔马卡条件支持的可能可穿越虫洞方案

IF 4.2 3区 物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS
Abdelghani Errehymy , S.K. Maurya , Gabriel-Eduard Vîlcu , Meraj Ali Khan , Mohammed Daoud
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引用次数: 0

摘要

莫里斯和索恩(1988 年)在他们的开创性著作中提出了可穿越虫洞(WHs)的概念,即作为桥梁连接两个不同时空或同一时空内不同点的几何结构。这些虫洞的特性由形状函数的选择决定。文献对修正引力理论中的 WHs 进行了广泛的研究,考虑了各种类型的形状函数。在本文中,我们重点研究在 f(R,T) 引力框架内推导可穿越 WH 的最简单解。我们的具体研究重点是 f(R,T)=R+αR2+λT 的函数形式,其中 R 表示利玛窦标量,T 表示能动张量的迹。通过纳入二次几何修正和线性物质修正,我们证明了 WHs 的物质含量可以顺从地符合能量条件(ECs)。这项研究极大地推动了我们对修正引力背景下 WHs 的理解。我们的发现为 WHs 的行为和性质提供了新的启示,突出了它们与 f(R,T) 引力框架的兼容性。通过加入几何和材料修正,我们揭示了 WHs 附着于 ECs 的能力,从而为这些有趣的天体提供了突破性的见解。总之,我们的研究从一个独特的角度展示了 WH 的建模,为引力物理学的更广阔领域做出了贡献。通过在f(R,T)引力框架内探索WHs并证明它们与ECs的一致性,我们拓展了对这些迷人结构的认识,并为这一领域的进一步研究铺平了道路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

On possible traversable wormhole solutions supported by Karmarkar condition in R2−gravity within the f(R,T)−formalism

On possible traversable wormhole solutions supported by Karmarkar condition in R2−gravity within the f(R,T)−formalism

In their seminal work, Morris and Thorne (1988) introduced the concept of traversable wormholes (WHs), which are geometric structures serving as bridges to connect two distinct spacetimes or different points within the same spacetime. The properties of these WHs are determined by the choice of the shape function. Extensive research has been conducted in the literature on WHs within modified theories of gravity, considering various types of shape functions. In this paper, we focus on deriving the simplest solutions for traversable WHs within the framework of f(R,T) gravity. Our specific focus lies on the functional form f(R,T)=R+αR2+λT, where R represents the Ricci scalar and T denotes the trace of the energy–momentum tensor. By incorporating quadratic geometric and linear material corrections, we demonstrate that the matter content of WHs can obediently conform to the energy conditions (ECs). This study significantly advances our understanding of WHs within the context of modified gravity. Our findings shed new light on the behavior and properties of WHs, highlighting their compatibility with the f(R,T) gravity framework. By unveiling the ability of WHs to adhere to ECs through the inclusion of geometric and material corrections, we provide groundbreaking insights into these intriguing objects. Overall, our research contributes to the broader field of gravitational physics by presenting a unique perspective on WH modeling. By exploring WHs within the f(R,T) gravity framework and demonstrating their conformity to ECs, we expand our knowledge of these fascinating structures and pave the way for further investigations in this area.

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来源期刊
Astroparticle Physics
Astroparticle Physics 地学天文-天文与天体物理
CiteScore
8.00
自引率
2.90%
发文量
41
审稿时长
79 days
期刊介绍: Astroparticle Physics publishes experimental and theoretical research papers in the interacting fields of Cosmic Ray Physics, Astronomy and Astrophysics, Cosmology and Particle Physics focusing on new developments in the following areas: High-energy cosmic-ray physics and astrophysics; Particle cosmology; Particle astrophysics; Related astrophysics: supernova, AGN, cosmic abundances, dark matter etc.; Gravitational waves; High-energy, VHE and UHE gamma-ray astronomy; High- and low-energy neutrino astronomy; Instrumentation and detector developments related to the above-mentioned fields.
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