3106 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 proposes a two-parameter deformation framework combining gravitational decoupling with linear gravity to enlarge the mass window of compact stars, demonstrating that the interplay between the decoupling parameter and the coupling constant allows for physically viable, high-mass configurations compatible with recent observations without violating causal limits.
This paper extends the kinematic flow framework to momentum-integrated loop-level cosmological correlators by demonstrating that banana loops and unparticle exchanges can be described by a finite set of master integrals governed by a first-order system of differential equations derived from specific combinatorial rules.
This paper presents numerical methods and specific solutions to Einstein's equations to explore cosmological models on compact, non-orientable spatial manifolds with varying curvatures.
This paper investigates interacting dark energy models using the CPL parametrization, finding that while an interaction term proportional to dark energy density () provides a slightly better fit to observational data than the non-interacting model, the CDM model remains statistically preferred due to its simplicity.
This paper assesses the detectability of quantum gravity effects in rotating quantum Oppenheimer-Snyder black holes using extreme-mass-ratio inspirals (EMRIs), finding that while LISA can detect these quantum imprints, the black hole's rotation tends to suppress these signatures.
This paper investigates quantum field theories with fractional kinetic terms, demonstrating that while they share a common Euclidean counterpart, they yield multiple inequivalent Minkowski formulations through different "fakeon" prescriptions that maintain perturbative unitarity and gauge invariance.
This paper presents a fully numerical study of parametric resonance in preheating, demonstrating that exact simulations reveal complex, coupling-dependent dynamics—such as mode-specific saturation and stochastic behavior—that differ significantly from traditional analytical approximations.
This paper refutes a recent claim that the Pound-Rebka experiment measured Doppler shifts instead of gravitational redshift, arguing that the critique is based on a misunderstanding of reference systems and an unphysical interpretation of forces.
This paper evaluates various scalar field dark matter models against the rotation curve of the Andromeda galaxy (M31), finding that a two-component bulge baryonic structure combined with a smooth cored halo, such as Fuzzy Dark Matter, provides the most statistically consistent fit.
This paper demonstrates that while thick braneworlds exhibit a "spectral butterfly effect" where small potential deformations cause dramatic shifts in quasinormal mode frequencies, the actual gravitational-wave ringdown remains resilient and dominated by the original fundamental mode, preserving the utility of current observational methods.