3784 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 for static and spherically symmetric black holes, the angular components of the Brown-York tensor define a quasi-local entropy that vanishes at infinity, increases monotonically toward the horizon, and equals the Bekenstein-Hawking entropy there, thereby providing explicit verification of the covariant entropy conjecture.
This paper demonstrates that while compactified spectral discretizations of Schwarzschild perturbations produce stable negative-imaginary-axis eigenvalue ladders, these candidates are ultimately rejected as physical quasinormal modes because they fail the invariant Jost determinant pole criterion, despite exhibiting characteristic branch-cut phase properties and pairing with high-order QNMs.
This paper presents an exact, nonperturbative analysis of spinning test particles in Schwarzschild spacetime that reveals a novel "spin wall"—an impenetrable barrier arising at large spins which shields the event horizon and filters infalling particles, features that are entirely absent in standard linearized spin approximations.
This paper investigates traversable wormholes supported by holographic dark energy with Yukawa modifications, finding that while Zero Tidal Forces can be maintained in a large region, the Yukawa distortion generally introduces negative energy density, with only the Bekenstein-Hawking profile remaining entirely positive.
This paper investigates timelike bound motion and resonant periodic orbits in rotating Konoplya-Zhidenko black hole spacetime, demonstrating how spacetime deformation alters orbital trajectories and generates millihertz-frequency gravitational-wave signals detectable by future space-based observatories.
This paper introduces three rapid boundary identification methods (AMPS, FLARE, and CRISP) paired with adaptive subtraction techniques to precisely define the extent of gravitational-wave glitches, significantly improving signal recovery and reducing false alarms compared to existing padded-window approaches.
This paper investigates the conditions under which long-range interactions mediated by massless particles preserve a hidden Laplace-Runge-Lenz vector, finding that while classical orbital precession is absent in many models, quantum mechanical hydrogen-like degeneracy is uniquely preserved in supergravity through a specific cancellation between gravitons and six Majorana gravitinos.
This paper investigates the late-time accelerated expansion of the Universe within a power-law gravity framework employing a logarithmic dark energy equation of state, demonstrating through Markov Chain Monte Carlo analysis of recent cosmological data that this model offers a valid and more flexible alternative to the standard CDM model with richer phenomenology at low redshifts.
This paper investigates the Einstein scalar field equations with a nonzero cosmological constant under Bondi-Sachs metrics, establishing asymptotic expansions dependent on four additional functions, proving the peeling property under specific conditions, and deriving a Bondi energy-momentum loss formula relevant to gravitational wave data.
This paper proposes a hybrid framework in Hu-Sawicki gravity where hierarchical primordial black hole mergers, accelerated by a screened fifth force, create massive seeds that efficiently grow into the supermassive black holes observed as Little Red Dots by JWST, thereby resolving high-redshift timing challenges while remaining consistent with gravitational wave constraints.