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

Chern-Simons-like formulation of 3D MMG-like massive gravity models

This paper investigates the Chern-Simons-like formulation of third-way consistent 3D MMG-like massive gravity models, solving their field equations and analyzing their AdS backgrounds and dual CFT central charges to reveal that specific chiral and degenerate points exhibit rank-2 and rank-3 Jordan block structures, respectively, which signal logarithmic and ultra-logarithmic behaviors in the boundary theory.

Büşra Dedeoğlu, Mehmet Ozkan, Özgür Sarıoğlu2026-06-02

⚛️ general relativity

Multidimensional arrow of time

This paper proposes that the arrow of time arises from the monotonic growth of the multidimensional manifold's volume, driven by the Bekenstein-Hawking-Wald entropy of the geometric background rather than matter entropy, thereby ensuring a persistent temporal directionality for 4D observers even in the vacuum limit.

Sergey G. Rubin2026-06-02

⚛️ phenomenology

Realizing the phantom-divide crossing with vector and scalar fields

This paper proposes a minimal generalized Proca model that realizes a phantom-divide crossing in dark energy while maintaining stability against ghosts and Laplacian instabilities, demonstrating that its flexibility in sound speed allows it to remain consistent with observational constraints on matter growth and light bending.

Shinji Tsujikawa2026-06-02

⚛️ general relativity

Spacetime of rotating black holes surrounded by massive scalar charges

This paper presents accurate spectral methods to construct the spacetime of rotating black holes surrounded by massive scalar fields with nonminimal couplings, enabling the calculation of horizon properties and paving the way for testing fundamental scalar degrees of freedom through electromagnetic and gravitational-wave observations.

Adrian Ka-Wai Chung2026-06-02

⚛️ general relativity

Penrose-Rindler equation and horizon thermodynamics of stationary black holes

This paper utilizes Newman-Penrose and Geroch-Held-Penrose formalisms to reformulate the horizon condition of stationary black holes as the Penrose-Rindler equation, thereby deriving a geometric, quasilocal Smarr-like formula that unifies horizon dynamics with thermodynamics through a pressure-volume interpretation.

Diego Fernández-Silvestre, Alberto Guilabert, Pedro Bargueño, Juan A. Miralles2026-06-02

⚛️ lattice

Spatial confinement-deconfinement transition in accelerated gluodynamics within lattice simulation

This lattice simulation study reveals that weak acceleration in gluodynamics transforms the finite-temperature confinement-deconfinement phase transition into a spatial crossover where coexisting phases are separated by a boundary accurately described by the Tolman-Ehrenfest law, suggesting such spatial transitions may occur near Schwarzschild black hole horizons.

Victor V. Braguta, Vladimir A. Goy, Jayanta Dey, Artem A. Roenko2026-06-02

⚛️ general relativity

Equilibrium Gibbs Bifurcations of Bardeen-AdS Black Holes at Fixed Pressure

This paper investigates the equilibrium Gibbs bifurcations of four-dimensional Bardeen-AdS black holes at fixed pressure, revealing that increasing the regularization scale induces a transition from Reissner-Nordstrom-AdS-like swallow-tail behavior to a single-branch regime through distinct topological boundaries governed by the dimensionless combination $8\pi P g^2$ .

J. -K. Wang2026-06-02

⚛️ general relativity

Future global stability of Maxwell-Jüttner equilibria and vacuum for the massless Boltzmann equation on FLRW spacetimes

This paper establishes the future global-in-time existence and uniqueness of small perturbations for both Maxwell-Jüttner equilibria and vacuum solutions of the massless Boltzmann equation on decelerating FLRW spacetimes with $\mathbb{T}^3$ topology, covering hard ball interactions for all expansion rates $\mathfrak{q} \in [0,1]$ and vacuum stability for $\mathfrak{q} > 1/3$ .

Robert M. Strain, Martin Taylor, Renato Velozo Ruiz2026-06-02

🔭 astrophysics

Eigenvalue formulation of Stochastic Inflation and application to large perturbation generating inflationary features

This paper introduces a novel eigenvalue technique to solve the adjoint Fokker-Planck equation for the probability distribution of inflationary e-folds, revealing a previously overlooked power-law intermediate regime in quantum diffusion and characterizing how constant drift potentials qualitatively alter the distribution's peak and tail behavior in narrow- versus broad-well limits.

Swagat S. Mishra, Edmund J. Copeland, Anne M. Green2026-06-02

⚛️ general relativity

Traversable Wormholes Supported by Entropy-Inspired Effective Matter Sectors

This paper investigates the viability of using entropy-induced density profiles from various modified gravity frameworks (Barrow, Tsallis, Kaniadakis, logarithmic, and exponential) as effective sources for traversable wormholes in the Morris-Thorne spacetime, demonstrating that these entropy-inspired sectors can support such geometries by redistributing exoticity through anisotropic stresses while satisfying necessary equilibrium and energy-condition constraints.

Jonathan A. Rebouças, Francisco Bento Lustosa, Celio R. Muniz2026-06-02

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