3256 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 humorously proposes that Mexican Burrowing Toads could serve as inexpensive gravitational wave detectors by amplifying cosmic signals through their nervous systems, though the authors found no evidence of such events in their recordings, ironically concluding that the lack of detection validates their unconventional approach.
This paper employs phase space analysis and center manifold theory to demonstrate that an gravity model extended with a generalized scalar field can successfully describe the Universe's transition from decelerated to accelerated expansion and approach a stable de Sitter-like phase without requiring a cosmological constant.
This paper applies the brick wall model to de Sitter horizons, demonstrating that while the superposition of independent near-horizon sectors in Schwarzschild-de Sitter space suppresses strict level repulsion, spectral form factors and Krylov complexity still robustly reveal the underlying chaotic dynamics of the system.
These lecture notes introduce the Dressing Field Method as a systematic framework for extracting gauge- and diffeomorphism-invariant physical observables in general-relativistic gauge field theory, illustrated through diverse applications ranging from Chern-Simons theory and electromagnetism to General Relativity.
This paper proposes that continuous gravitational waves generated by rapid charge-discharge processes in neutron star magnetospheres, particularly from outer gaps with strains around , could be detectable by future observatories like the Einstein Telescope, offering a new method to probe magnetospheric physics.
This paper investigates Jackiw-Teitelboim gravity in two-dimensional de Sitter space by deriving a conditional density matrix from exact Wheeler-DeWitt solutions, revealing that the ground state is a mixed state rather than a pure Hartle-Hawking state and predicting a flat probability distribution for the universe's size.
This paper investigates gravitational wave turbulence within the Hadad-Zakharov metric by addressing the compatibility of Einstein equations and utilizing a new GPU-based code to demonstrate the emergence of Kolmogorov-Zakharov spectra, dual cascades, and intermittent coherent structures, thereby confirming the propagation of genuine physical degrees of freedom.
This paper investigates the spectral instability of the mapping between bound states and black hole quasinormal modes via analytic continuation, demonstrating that while the correspondence holds when perturbations are near potential extrema, it breaks down when perturbations are asymptotically distant, revealing critical constraints on the convergence of the underlying series expansions.
This paper presents a fully general-relativistic multifluid framework for modeling adiabatic tidal deformations in compact stars, demonstrating that nondissipative mutual entrainment between fluid species leaves tidal deformabilities unchanged and thus produces no measurable effect on gravitational-wave signals during the inspiral phase.
This paper investigates two distinct single-field brane inflation scenarios—radial and angular—within a warped deformed conifold geometry, where moduli stabilization via D7-brane Kuperstein embeddings generates the inflaton potentials, demonstrating that embedding these models in the warm inflation paradigm with dissipation enables them to satisfy current observational constraints from Planck and ACT, whereas their cold inflation counterparts fail.