具有各向异性内应力的非旋转相对论性球体的复杂性、开裂性和稳定性

IF 2.8 3区物理与天体物理 Q2 PHYSICS, PARTICLES & FIELDS

Nuclear Physics B Pub Date : 2025-09-11 DOI:10.1016/j.nuclphysb.2025.117115

Megandhren Govender , Satarupa Barman , Ranjan Sharma , B.S. Ratanpal , Keshlan S. Govinder

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引用次数: 0

摘要

基于Herrera[1]定义的复杂性概念，研究了具有各向异性内应力的静流体球的稳定性。结果表明，压力各向异性梯度与流体密度密切相关。特别是，对于消失的复杂性，流体的稳定性限制了流体密度的行为。在非恒定复杂性的更一般情况下，我们表明当复杂性降低时稳定性增强。

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Complexity, cracking and stability of non-rotating relativistic spheres with anisotropic internal stresses

The stability of static fluid spheres with anisotropic internal stresses is studied based on the notion of complexity as defined by Herrera [1]. We show that the gradient of pressure anisotropy is intimately linked to the fluid density. In particular, for vanishing complexity, the stability of the fluid constrains the behaviour of the fluid density. In the more general case of non-constant complexity, we show that stability is enhanced when complexity decreases.

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来源期刊

Nuclear Physics B 物理-物理：粒子与场物理

CiteScore

5.50

自引率

7.10%

发文量

302

审稿时长

1 months

期刊介绍： Nuclear Physics B focuses on the domain of high energy physics, quantum field theory, statistical systems, and mathematical physics, and includes four main sections: high energy physics - phenomenology, high energy physics - theory, high energy physics - experiment, and quantum field theory, statistical systems, and mathematical physics. The emphasis is on original research papers (Frontiers Articles or Full Length Articles), but Review Articles are also welcome.