4428 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 extends the established duality between black hole and Bose gas thermodynamics to black brane solutions, demonstrating that while Schwarzschild black holes violate the third law of thermodynamics, certain black branes (such as Poincaré and Lifshitz types) preserve it by mapping to specific non-relativistic Bose gases in unconventional spatial dimensions.
This paper demonstrates that the thermodynamics of Schwarzschild black holes in and spacetime dimensions can be modeled by Bose gases with specific power-law energy spectra in negative spatial dimensions, showing that minimal cut-off renormalization yields results consistent with analytical regularization via the Riemann zeta-function.
This paper proposes that by considering specific mass-charge relationships in Reissner-Nordström black holes (and extending the analysis to Kerr and de Sitter variants), complete evaporation can occur without a temperature blow-up, resulting in radiation entropy that follows the Page curve and vanishes at the end of the process.
This paper presents exact spherically symmetric solutions for Schouten-Codazzi gravity with dust and radiation sources, demonstrating that the theory's Codazzi tensor contributions can generate accelerated expansion and ever-expanding cosmological models without requiring dark energy.
This paper investigates gravitational dark matter production within Einstein-Cartan theory by incorporating s-channel graviton exchange and the Holst term to refine calculations of the total cross section, collision term, and resulting dark matter abundance arising from torsion-induced four-fermion interactions.
This paper proposes that quantum-gravitational spacetime foam induces a stochastic arrival-time jitter that distorts the spectral coherence of light from distant sources, offering a new spectroscopic probe that, when applied to GRB 221009A and the CMB, establishes lower bounds on the foam exponent which generally remain consistent with existing imaging constraints unless specific near-Planck refresh conditions are assumed.
This paper presents new numerical solutions for rotating, hairy black holes within a specific subclass of Horndeski scalar-tensor theories, which differ from the Kerr metric by possessing a primary scalar hair, lacking circularity, and violating the zeroth law of black hole thermodynamics.
This paper presents the first general closed-form solution for geodesic motion in five-dimensional Kerr-(A)dS black holes by expressing radial and polar coordinates via manifestly real formulas valid for all root structures, while deriving time and angular coordinates through elliptic integrals of the third kind, alongside corrections to previously published metric and potential expressions.
This paper derives black hole solutions coupled to a real scalar field under local scale symmetry, analyzing how the black hole's temperature, entropy, and effective mass evolve through adiabatic accretion in the zero-coupling limit and proposing distinct scalar field concentration behaviors based on black hole mass in the general non-zero coupling case.
This paper investigates the dynamics of extreme-mass-ratio inspirals around rotating charged black holes in Einstein-Euler-Heisenberg nonlinear electrodynamics, demonstrating how the black hole's spin and charge parameters alter orbital stability and gravitational-wave signatures to provide a potential observational test for the no-hair theorem.