3967 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.
This paper demonstrates that the renormalized stress-energy tensor of a non-minimally coupled massive scalar field in a zero-tidal wormhole can satisfy the Morris-Thorne conditions within three specific regions of the mass and coupling parameter space, while simultaneously identifying two mass intervals where such conditions are impossible to meet regardless of the coupling strength.
This paper proposes a novel method for measuring the Hubble constant by combining strong lensing of gravitational-wave dark sirens with galaxy lensing data, demonstrating that just eight such lensed events can improve measurement precision by approximately 50% compared to 250 unlensed events.
This paper proposes an algebraic generator-history framework for Lorentzian topology change that identifies parity-odd conformal curvature as a unique, pre-quantum geometric diagnostic capable of tracking chiral generator dynamics without relying on new gravitational laws or endpoint-only invariants.
This paper demonstrates that anisotropic matter black holes characterized by parameters and can be identified as nonlinear electrodynamics black holes with power-index and charge term , enabling the derivation of rotating and extremal solutions that encompass specific cases like constant scalar hair, charged quantum Oppenheimer-Snyder, and Einstein-Euler-Heisenberg black holes.
This paper demonstrates that polariton condensates provide a unique platform for simulating analogue black hole mergers, showing that while pairs of vortices cannot form a common horizon, systems of four or more vortices can undergo a complete merger governed by a simple geometrical law.
Using first-principles lattice simulations of SU(3) Yang-Mills theory in Rindler spacetime, this study demonstrates that weak acceleration induces a spatially inhomogeneous confinement-deconfinement phase transition where distinct phases coexist, with a phase boundary consistent with theoretical predictions and a critical temperature matching that of non-accelerated gluodynamics.
This paper establishes that in asymptotically flat, spherically symmetric spacetimes satisfying the weak energy condition, the Schwarzschild solution sets the absolute upper bound for event horizon, photon sphere, and shadow radii, while also deriving specific bounds for extremal black holes and proving that the strong energy condition cannot be violated outside the event horizon.
This paper establishes global existence and decay properties for small-data solutions to a general class of coupled tensorial quasilinear wave equations in three dimensions that satisfy the weak-null condition but fail the standard null condition, by introducing a novel decoupling technique for higher-order energy estimates that overcomes limitations of previous methods.
The paper demonstrates that a causal diffeomorphism preserving the Ricci tensor between two spacetimes, where at least one admits a complete timelike geodesic, must necessarily be a homothety.
This paper derives a systematic framework for one-loop effective potentials in curved spacetimes and demonstrates that, for scalar theories in de Sitter and anti-de Sitter backgrounds, the computed -functions and anomalous mass dimensions coincide exactly with their flat-space counterparts despite significant curvature-induced modifications to physical masses and couplings.