⚛️ Category

gr-qc

3826 papers

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

Critical and multicritical Kasner scaling in holographic phase transitions

This paper investigates how holographic phase transitions influence the local Kasner geometry inside Einstein-scalar black holes, deriving and numerically verifying that the near-critical scaling of Kasner exponents is governed by the boundary condensate's power law, which varies with the order of criticality and is ultimately controlled by the leading irrelevant exponent of the infrared fixed point.

Ling-Long Gao, Yan Liu, Hong-Da Lyu2026-08-06
⚛️ general relativity

Ideal points, directed completion and the case of the maximally extended Schwarzschild spacetime

This paper establishes that the directed completion of Lorentzian pre-length spaces coincides with the Geroch–Kronheimer–Penrose future causal completion under natural assumptions, and applies this result to characterize the directed completion of the Kruskal–Szekeres spacetime via its radial null geodesics.

Nicola Gigli, Argam Ohanyan, Marco Picerni, Zhe-Feng Xu, Matteo Zanardini2026-08-06
⚛️ general relativity

Newtonian Potential in Weyl Gravitoelectromagnetism

This paper investigates the gauge structure of Weyl Gravitoelectromagnetism to demonstrate that only an effective spin-2 sector contributes to physical observables, subsequently deriving the Newtonian potential via Bhabha scattering and showing that while it is recovered at low temperatures, it undergoes thermal screening in the high-temperature regime within the Thermo Field Dynamics formalism.

L. A. S. Evangelista, A. F. Santos2026-08-06
⚛️ general relativity

Post-Inflationary Constraints on Nonminimally Coupled Quintessential Inflation

This paper demonstrates that in nonminimally coupled quintessential inflation, constraints on the reheating temperature derived from the stochastic gravitational-wave background's contribution to ΔNeff\Delta N_{\textrm{eff}} directly limit the present-day dark-energy equation of state, a tension resolved by a double-exponential potential that yields a thawing quintessence regime with wφ,0≃(−0.90,−0.95)w_{\varphi,0}\simeq (-0.90, -0.95).

Min Gi Park, Seong Chan Park, Tomo Takahashi, José Jaime Terente Díaz2026-08-06
⚛️ general relativity

On the geometry and uniqueness of asymptotically locally hyperbolic static vacuum black holes

This paper establishes geometric characterizations and uniqueness results for 3-dimensional asymptotically locally hyperbolic static vacuum black holes by developing a new monotone quantity and regularity theorem for inverse mean curvature flow, which are used to prove rigidity theorems, support a Chang-Yang-Zhang conjecture, and verify a reverse Riemannian Penrose inequality.

Brian Harvie, Ye-Kai Wang2026-08-05
⚛️ general relativity

Topologically Charged Morris-Thorne-type Wormholes and the Energy Conditions

This paper investigates topologically charged Morris-Thorne-type traversable wormholes supported by anisotropic fluids through seven distinct shape functions, demonstrating that while the energy density remains positive, the null, weak, strong, and dominant energy conditions are only partially satisfied or violated depending on the specific configuration and topological charge.

Faizuddin Ahmed, Md Sabir Ali, Adnan Malik2026-08-05
⚛️ general relativity

Determination of the Angular Momentum of Radiated Gravitons, Scalars, and Dark Photons from Binary Orbits

Using a field-theoretic approach, this paper demonstrates that compact binaries radiate angular momentum such that each emitted graviton carries approximately 2ℏ2\hbar while scalar and dark photon quanta carry approximately ℏ\hbar, a result that holds for both elliptical and hyperbolic orbits and can be determined from orbital evolution despite the impossibility of a gauge-invariant decomposition into spin and orbital components.

Arpan Hait, Subhendra Mohanty2026-08-05
🌀 nonlinear sciences

Ramp, Plateau, and Wormholes without Averaging, and Hyper-non-perturbative Structures in Gravity

This paper proposes that universal signatures of quantum chaos, such as spectral ramps, plateaus, and wormholes, emerge as macroscopic smooth structures within microscopic data via a smooth filter projection rather than through ensemble averaging, thereby establishing a dual connection between a minimal Gutzwiller-like structure in holographic systems and hyper-non-perturbative gravitational objects like wormhole condensates.

Hong Liu2026-08-05