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Dynamical features and shadows of quantum Schwarzschild black hole in effective field theories of gravity

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arxiv 2501.14516 v1 pith:CI5TTIRH submitted 2025-01-24 gr-qc astro-ph.HEhep-th

Zi-Liang Wang , Emmanuele Battista This is my paper · ORCID
classification gr-qcastro-ph.HEhep-th
keywords blackholequantumcirculardifferenteffectivefieldgravity
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We investigate the properties of the Schwarzschild black hole geometry involving leading one-loop long-distance quantum effects, which arise within the framework of effective field theories of gravity. Our analysis reveals that geodesic trajectories of both massive and massless particles can assume completely different behaviors depending on the sign assumed by the quantum contributions, in spite of their smallness. Moreover, we find that the positions of stable and unstable circular orbits are determined by an algebraic quartic equation, which we solve by developing a straightforward and analytic method. Additionally, we examine black hole shadows and rings by means of two different emission profile models, which account for quantum corrections to the innermost stable circular orbit and photon sphere radii. The Hawking temperature and the entropy of the black hole are also derived. Finally, we draw our conclusions.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Shadow of the generalized Vaidya black hole

    gr-qc 2026-07 conditional novelty 5.0 of 10

    For self-similar Husain black holes, the barotropic index α controls the shadow: α<1/2 enlarges it, α>1/2 shrinks it, with a quasistatic influx criterion for the time-dependent case.

  2. Observational Constraints on Kazakov-Solodukhin Quantum-Deformed Black Holes from M87$^*$ and Sgr A$^*$ Shadows

    gr-qc 2026-07 conditional novelty 4.0 of 10

    EHT shadow sizes of M87* and Sgr A* constrain the Kazakov-Solodukhin deformation parameter η to O(1) ranges while the metric remains asymptotically Schwarzschild.

  3. Einstein Maxwell Scalar Black Hole: Thermodynamic Properties with Logarithmic Barrow Entropy

    gr-qc 2025-05 reject novelty 4.0 of 10

    Using logarithmically corrected Barrow entropy on a known EMS black hole, the paper claims remnant formation and phase transitions, but the analysis uses the Schwarzschild area rather than the solution's actual horizon area.

  4. Thermodynamics of deformed AdS-Schwarzschild black holes in the presence of Thermal fluctuations

    hep-th 2025-01 conditional novelty 4.0 of 10

    For a deformed AdS-Schwarzschild black hole, increasing the deformation parameter raises the Hawking-Page temperature, while thermal corrections mainly alter small-horizon thermodynamics and leave second-order phase t...

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