2489 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 demonstrates that realistic, fully non-linear Numerical Relativity simulations of cosmological inflation can be achieved by initializing stochastic Bunch-Davies vacuum conditions that satisfy General Relativity constraints, successfully recovering standard perturbative results while capturing strongly non-linear inhomogeneities in complex models like strong resonance.
This paper demonstrates that four-dimensional de Sitter vacuum solutions can be realized on probe D3 and D5 branes nucleated in an asymptotically background by leveraging stringy corrections, high chemical potentials, and specific gauge field configurations without the need for fine-tuning.
This paper utilizes the fluid/gravity correspondence within the AdS/BCFT framework to demonstrate that specific metric boundary conditions on an end-of-the-world brane naturally induce corresponding boundary conditions for the velocity and temperature fields of conformal fluids in the dual boundary conformal field theory.
This paper presents exact, horizonless traversable wormhole solutions in massive gravity by combining a perturbative dRGT graviton-mass term with various redshift profiles, demonstrating that the additional anisotropic pressure from the mass term can sustain the wormhole throat while satisfying or minimally violating energy conditions.
This lecture evaluates the performance of the standard FLRW cosmological model in predicting cosmic expansion and light propagation, while presenting results on the challenges posed by backreaction and fitting problems when moving beyond strict homogeneity and isotropy.
This paper presents a mathematical framework extending symmetry reduction to classical field theories within the De Donder-Weyl multisymplectic formalism, allowing for the identification and removal of redundant, empirically inaccessible global scale degrees of freedom while preserving Lorentz covariance.
This paper investigates the macroscopic backreaction of quantum fields in the Boulware vacuum on Schwarzschild spacetime by applying an order-reduction procedure to the Riegert–Mottola–Vaulin renormalized stress-energy tensor derived from the conformal anomaly, while ensuring stress-energy conservation and comparing the results with recent literature.
This paper investigates the spectral stability of total transmission modes in -dimensional Tangherlini black holes using pseudospectrum analysis, revealing that while these modes are generally unstable like quasinormal modes, a specific purely imaginary mode exhibits enhanced stability and that genuinely complex families emerge in dimensions .
Using the DESI DR1 Luminous Red Galaxy sample, this study finds that apparent parity-odd four-point correlation signals are likely statistical artifacts rather than evidence of new physics, concluding that the current signal is consistent with zero while highlighting the need for higher-completeness future data releases to improve detection sensitivity.
This paper presents an explicit closed-form description of dynamical extreme Reissner-Nordstrom black holes by utilizing two-dimensional Jackiw-Teitelboim gravity to model non-linear s-wave dynamics near an throat, demonstrating how these singularity-free solutions approach a static extreme horizon while exhibiting the linear Aretakis instability and emitting a final burst of scalar flux.