2693 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 provides a conceptual assessment of the compatibility between asymptotically safe quantum gravity and the swampland program, identifying black hole thermodynamics, spacetime topology change, and holography as the core aspects that determine whether field-theoretic descriptions of gravity can satisfy fundamental consistency principles.
Using a semi-analytic radiatively inefficient accretion flow model combined with general relativistic ray tracing, this study demonstrates that M87* is most consistent with a poloidal magnetic field-dominated flow featuring radial inflow, a configuration that can be reliably distinguished from toroidal-dominated alternatives by Event Horizon Telescope observables.
This paper establishes an explicit operational link between information flow and matter creation by deriving relations showing how entanglement entropy drives particle production across diverse scenarios, including accelerated motion, black hole evaporation, and beta decay, thereby providing a concrete demonstration of "it from bit."
The paper introduces a new technique to precisely characterize the divergence of series expansions in linear eigenvalue problems dependent on a small parameter, demonstrating its effectiveness through applications to the anharmonic oscillator, equatorially-trapped Rossby waves, and Reissner-Nordstrom-de Sitter black hole quasinormal modes.
This paper investigates holographic DC conductivity in Taub-NUT- black holes using the probe D-brane approach, revealing that frame dragging caused by the Misner string significantly enhances conductivity at low temperatures while its effects are suppressed by thermal contributions at high temperatures.
This paper employs a dynamical systems approach to analyze an exponential gravity model with linear dark-sector interactions, successfully identifying and characterizing the stability of critical points that reproduce the Universe's main cosmological epochs and influence late-time de Sitter behavior.
Using the \texttt{TSUNAMI} N-body code and a novel waveform construction method, this study identifies four distinct orbital families of highly eccentric stellar-mass binary black holes in galactic nuclei, demonstrating that their unique gravitational-wave signatures can be distinguished by LISA to reveal their dynamical origins in triple systems.
Using worldline quantum field theory, this paper computes the conservative scattering angle and impulse for black holes at fifth post-Minkowskian order by performing a complex four-loop calculation that identifies and resolves a spurious velocity divergence through a novel conservative propagator prescription, thereby ensuring consistency with radiative memory and tail contributions while satisfying all known low-velocity limits.
This paper demonstrates that the quantum-backreacted BTZ black hole in New Massive Gravity can be classically realized as a unique static solution in Einstein gravity coupled to exponential nonlinear electrodynamics, establishing a dynamical equivalence that maps quantum backreaction parameters to classical charges and yields a complete thermodynamic description.
This paper investigates the dynamical Casimir effect in a cavity with a mirror oscillating under the influence of a gravitational wave, identifying specific resonance conditions that trigger parametric amplification and an exponential increase in particle production.