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arXiv 2409.04997gr-qchep-th
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$F(R)$-Euler-Heisenberg引力彩虹中黑洞的热力学拓扑

Thermodynamic topology of Black Holes in $F(R)$-Euler-Heisenberg gravity's Rainbow

Yassine Sekhmani, Saeed Noori Gashti, Mohammad Ali S. Afshar, Mohammad Reza Alipour, Jafar Sadeghi, Behnam Pourhassan, Javlon Rayimbaev

AI总结:

本研究推导了$F(R)$-Euler-Heisenberg理论的场方程,得到静态球对称能量依赖黑洞解析解,分析了其热力学拓扑性质,明确了参数对拓扑荷的影响及AdS构型下无裸奇点的独特性。

摘要:

黑洞热力学拓扑是一个极具吸引力的研究领域,旨在探究黑洞的热力学性质与拓扑特征之间的关联。我们成功推导了$F(R)$-Euler-Heisenberg理论的场方程,为研究修改引力与非线性电磁效应之间的相互作用提供了框架。我们得到了具有常标量曲率的静态球对称能量依赖黑洞的解析解。此外,我们对$F(R)$-Euler-Heisenberg引力彩虹中黑洞的分析揭示了其拓扑性质的重要洞见。我们通过研究沿不同自由参数的归一化场线,确定了总拓扑荷。研究结果表明,参数$(R_0)$和$(f_ε = g_ε)$会影响拓扑荷,这些结果被全面总结在表I中。在考察该模型内的光子球时,参数$R_0$的符号对决定模型采用dS(德西特)还是AdS(反德西特)构型起着关键作用。该模型的一个有趣特性是,在其AdS形式下,它避免了裸奇点区域的形成,这使其与许多其他模型区别开来。通常,其他模型中参数值的变化会导致空间被划分为黑洞区域和裸奇点区域。但该模型通过存在不稳定光子球,始终保持其黑洞行为,无论参数值在可接受范围内如何变化。在其dS形式下,该模型光子球的行为与其他dS模型保持一致,未表现出独特差异。

英文摘要:

The topology of black hole thermodynamics is a fascinating area of study that explores the connections between thermodynamic properties and topological features of black holes. We successfully derive the field equations for $F(R)$-Euler-Heisenberg theory, providing a framework for studying the interplay between modified gravity and non-linear electromagnetic effects. We obtain an analytical solution for a static, spherically symmetric, energy-dependent black hole with constant scalar curvature. Also, our analysis of black holes in F(R)-Euler-Heisenberg gravity's Rainbow reveals significant insights into their topological properties. We identified the total topological charges by examining the normalized field lines along various free parameters. Our findings indicate that the parameters $( R_0 )$ and $( f_ε = g_ε )$ influence the topological charges. These results are comprehensively summarized in Table I. In examining the photon sphere within this model, the sign of the parameter \( R_0 \) plays a crucial role in determining whether the model adopts a dS or AdS configuration. An interesting characteristic of this model is that, in its AdS form, it avoids the formation of naked singularity regions, which sets it apart from many other models. Typically, varying parameter values in other models can result in the division of space into regions of black holes and naked singularities. However, this model consistently retains its black hole behavior by featuring an unstable photon sphere, regardless of parameter values within the acceptable range. In its dS form, the behavior of the model's photon sphere remains consistent with other dS models and does not exhibit unique differences.

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