gr-qc papers | Gist.Science

Quantum gravity represents the frontier where the very large meets the very small, attempting to unify Einstein's theory of gravity with the strange rules of quantum mechanics. This field explores the fundamental fabric of spacetime, seeking to understand how the universe behaves at its most extreme scales, from the heart of black holes to the moment of the Big Bang. Because these concepts often involve complex mathematics, they can feel distant to non-specialists, yet they hold the key to a complete picture of physical reality.

At Gist.Science, we bridge this gap by processing every new preprint in this category directly from arXiv. Our team provides both plain-language explanations and detailed technical summaries for each paper, ensuring that groundbreaking research is accessible to everyone, from curious students to seasoned researchers. Below are the latest papers in quantum gravity, offering fresh insights into the nature of our cosmos.

⚛️ high-energy theory

Exact Spinning Morris-Thorne Wormhole: Causal Structure, Shadows, and Multipole Moments

This paper presents an exact, analytically solvable spinning generalization of the Morris-Thorne traversable wormhole supported by anisotropic fluid, demonstrating its stable causal structure despite ergoregions, characterizing its distinctively smaller optical shadows compared to Kerr black holes, and identifying unique multipole moments that encode the throat scale in a massless, spinning configuration.

Davide Batic, Denys Dutykh, Mark Essa Sukaiti2026-02-26

⚛️ high-energy theory

Holographic CFT Phase Transitions and Criticality for Einstein-Maxwell-Power-Yang-Mills AdS Black Holes

This paper investigates the thermodynamic phase transitions of Einstein-Maxwell-power-Yang-Mills AdS black holes via holographic duality, revealing that increasing the non-Abelian Yang-Mills charge suppresses confinement stability and induces distinct van der Waals-like and Hawking-Page transitions depending on the thermodynamic ensemble.

Mohammad Reza Alipour, Mohammad Ali S. Afshar, Saeed Noori Gashti, Behnam Pourhassan2026-02-26

⚛️ high-energy theory

On the intrinsically flat cosmological models in a lattice

This paper investigates intrinsically flat spacetimes as viable cosmological models for periodic inhomogeneous matter distributions, establishing their geometric foundations, proving the existence and uniqueness of solutions to Einstein's equations under periodic boundary conditions, and presenting exact solutions that transition from early-time homogeneity to late-time structures of peaks and voids.

Eduardo Bittencourt, Leandro G. Gomes, Grasiele B. Santos2026-02-25

⚛️ phenomenology

Entropy Production in the Inflationary Epoch Using the Gouy-Stodola Theorem

This paper applies the Gouy-Stodola theorem to calculate the entropy production rate during the inflationary epoch caused by the decay of the inflaton scalar field, finding results that align with established literature values.

R. H. Longaresi, S. D. Campos2026-02-25

⚛️ general relativity

From disformal electrodynamics to exotic spacetime singularities

This paper investigates the emergence of exotic spacetime singularities within the framework of disformal electrodynamics, specifically analyzing electrostatic fields generated by charged point particles arranged along a line.

Eduardo Bittencourt, Ricardo Fernandes, Érico Goulart, José Eloy Ottoni2026-02-25

🔬 condensed matter

On Negative Mass, Partition Function and Entropy

This paper investigates the convergence of the partition function for negative mass systems, demonstrating that while assuming negative absolute temperature yields complex physical quantities, introducing an imaginary velocity while maintaining positive temperature results in a positive partition function and real entropy, suggesting the latter approach is more physically plausible.

S. D. Campos2026-02-25

🔭 astrophysics

Gravitational Surface Tension as the Origin for the Black Hole Entropy

This paper proposes that gravitational surface tension, analyzed through the Gouy-Stodola theorem, serves as the fundamental origin for deriving the Bekenstein-Hawking entropy-area law for both non-rotating and rotating black holes while confirming that black hole mergers satisfy the second law of thermodynamics.

S. D. Campos, R. H. Longaresi2026-02-25

⚛️ general relativity

Constraints on polynomial inflation under power-law perturbations

This paper constrains the free parameters of power-law monomial inflationary models by analyzing the effects of a perturbative second term on slow-roll parameters and comparing the resulting spectral index and tensor-to-scalar ratio with Planck satellite data.

Maria E. S. Antunes, Micol Benetti, Eduardo Bittencourt, Fernando A. Franco2026-02-25

⚛️ general relativity

Exploring the presence of a fifth force at the Galactic Center

Using a Markov Chain Monte Carlo analysis of S2 star data from 1992 to 2022, this study establishes the most stringent upper limit to date for a Yukawa-like fifth force at the Galactic Center, constraining its intensity to $|\alpha| < 0.003$ for a scale length of approximately 200 AU.

The GRAVITY Collaboration, K. Abd El Dayem, R. Abuter, N. Aimar, P. Amaro Seoane, A. Amorim, J. P. Berger, H. Bonnet, G. (…)2026-02-25

⚛️ general relativity

Linear analysis of I-C-Love universal relations for neutron stars

This paper introduces a new linear analysis framework that decomposes deviations in I-C and I-Love neutron star universal relations into an equation-of-state-dependent factor and a structure-dependent factor, demonstrating that the latter's smallness is the origin of the observed universality.

Zexin Hu, Yong Gao, Lijing Shao2026-02-25

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