Fri - 01/16/26

There is no new related paper today

There is no new related paper today

  1. [] - Title: BRST Symmetry Violation and Fundamental Limitations of Asymptotic Safety in Quantum Gravity - Farrukh A. Chishtie

Thu - 01/15/26

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There is no new related paper today

  1. [] - Title: Ultraviolet Behavior of the Wheeler-DeWitt Equation in Horava-Lifshitz Gravity - Takamasa Kanai

Wed - 01/14/26

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There is no new related paper today

  1. [] - Title: On Causality and Predictivity - Damiano Anselmi

Tue - 01/13/26

**Title:

      Radiation properties and images of loop quantum Reissner-Nordström black hole with a thin accretion disk**  - **Authors:** Qian Li, Jia-Hui Huang  - **Subjects:** Subjects: General Relativity and Quantum Cosmology (gr-qc)  - **Arxiv link:** [https://arxiv.org/abs/](https://arxiv.org/abs/)  - **Abstract**  We investigate the characteristics of circular geodesics around loop quantum Reissner-Nordström black hole (LQRNBH) and the radiation properties and observational appearance of a thin accretion disk around it. By calculating the shadow radius and utilizing observational data from M87* and Sgr A*, we derive constraints on the quantum parameter $\zeta$ and charge parameter $Q$. The timelike circular geodesics around LQRNBH and the influence of the model parameters on the circular motion are also discussed. It is found that contrary to the case of the parameter $Q$, the increase of the quantum parameter $\zeta$ leads to the increase of the radius of the innermost stable circular orbit (ISCO). Then, by considering a thin accretion disk model, various radiation properties of the LQRNBH and the effects of the model parameters on them are studied. Concrete examples are provided for quantitative comparison of the radiation properties between LQRNBH and Schwarzschild black hole. With the ray-tracing method, the isoradial curves, redshift distributions, and the observed radiation fluxes of the direct and secondary images of the LQRNBH with the thin accretion disk for various model parameters and observation angles are numerically calculated and discussed. These results are beneficial for us to understand the physical consequences of loop quantum gravity effect.

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Mon - 01/12/26

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There is no new related paper today

  1. [] - Title: Quasi-Homogeneous Thermodynamics and Microscopic Structure of the Quantum-Corrected FLRW Universe - Carlos E. Romero-Figueroa, Hernando Quevedo

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