2649 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 investigates static, spherically symmetric solitonic boson stars in general relativity and incompressible perfect fluid ultracompact objects in gravity to compare their structural similarities, assess their ability to exceed the Buchdahl limit, and clarify the stability properties of these black-hole mimickers.
This paper proposes a theory explaining the Crab pulsar's high-frequency interpulse "zebra" spectral pattern as interference maxima from gravitational and plasma lensing, enabling magnetospheric tomography and predicting observable frequency-dependent trends for testing strong-field gravity.
This paper demonstrates that neglecting subdominant multipole asymmetries in binary black-hole mergers leads to significant errors in recoil velocity calculations and systematic biases in parameter inference, highlighting their critical role for accurate modeling with future third-generation gravitational-wave detectors.
This study presents new constraints on a string-motivated Chameleon dark energy model, revealing a mild preference for a non-zero dark sector coupling () and weak evidence favoring the interaction over CDM when combining Planck, DESI DR2, and SH0ES data, despite the model's asymptotic return to limiting the strength of this evidence.
This paper investigates the quantum field descriptions of massive Carrollian theories, including scalar, fermion, and electrodynamics models, with a specific focus on resolving gauge-dependence issues in scalar Carrollian electrodynamics through careful gauge fixing and demonstrating the triviality of certain abelian theories due to the absence of loop corrections.
This paper constructs the canonical ensemble of a self-gravitating thin shell in anti-de Sitter space using the Euclidean path integral approach to derive its thermodynamic properties, identify a fully stable equilibrium configuration, and demonstrate a first-order phase transition to a Hawking-Page black hole phase that occurs below a maximum temperature limit.
This paper investigates the coherence of mixed GHZ and W states in Schwarzschild spacetime, revealing that mixed W states maintain superior coherence against Hawking radiation compared to GHZ states as qubit numbers increase, while bosonic fields exhibit higher coherence and fermionic fields preserve stronger entanglement.
This paper presents a numerical approach using the hyperboloidal slice method to study particle creation in accelerating toy models within Minkowski spacetime, offering a promising framework for rigorously addressing the Hawking scattering problem in complex gravitational scenarios by reaching both past and future null infinities.
This paper presents a precise quintom-like transit universe model within the framework of metric-affine gravity, deriving hyperbolic solutions constrained by observational data that reveal phantom and quintom-A characteristics through the analysis of cosmological parameters and the $Om$ diagnostic test.
This paper investigates the stellar origin of the massive, rapidly spinning black hole GW231123 by simulating rotating massive stars, finding that differential rotation can shift the pair-instability mass gap to higher values and allow for the direct core-collapse formation of black holes with masses exceeding 150 solar masses and high spins.