非Schwarzschild黑洞的标量-矢量场源
Non-Schwarzschild black holes sourced by scalar-vector fields
- Pontificia Universidad Católica de Valparaíso（天主教瓦帕拉索公立大学）
- Universidad Católica del Norte（北部天主教大学）
- Silesian University in Opava（奥帕瓦西里西亚大学）
- Universidad de La Frontera（拉弗龙特拉大学）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
研究通过非线性电磁动力学描述的标量-矢量引力理论，推导出非Schwarzschild静态球对称黑洞解，并证明其在特定条件下稳定性。
AI中文摘要：
在标量-矢量引力理论中，通过已知的引力解耦方法求解场方程，得到一个球对称且静态的非Schwarzschild黑洞解。利用偶极子和奇极子模式的主方程，证明该解在标量和矢量场参数满足特定条件时具有稳定性。为进一步验证该玩具模型的理论可行性，详细分析了因果结构、质量粒子的测地运动以及一些热力学特征。
英文摘要：
In this work, we construct a static and spherically symmetric black hole solution sourced by a nonlinear scalar-vector sector within the framework of the Minimal Geometric Deformation (MGD) approach. Starting from a scalar-vector gravity theory in which the vector field is described by nonlinear electrodynamics, the gravitational field equations are integrated to obtain a non-Schwarzschild geometry. We show that the resulting family of solutions naturally splits into two black hole branches with distinct physical properties. While one branch satisfies the odd- and even-parity stability criteria, it violates the weak energy condition outside the event horizon. Conversely, the complementary branch exhibits a more satisfactory effective matter sector, admitting a real scalar-field reconstruction and a regular nonlinear electromagnetic coupling, although it does not satisfy the odd-parity stability criterion. The causal structure and stability properties of both black hole branches are analyzed and compared, whereas the matter reconstruction, geodesic motion and thermodynamic properties are investigated for the branch exhibiting the most satisfactory effective matter sector. These results reveal the rich structure of the MGD solution space and illustrate the interplay between dynamical stability, energy conditions and causal structure.
