3805 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 establishes that the creation and erasure of antipodal odd structures in a conformal channel during transient Hawking radiation enforce a lower bound on the integrated spatial norm of the channel defect, a constraint determined primarily by intermediate mismatch and antipodal Jacobian distortion while treating other physical effects as controlled remainders.
This paper reconstructs an modified gravity model by establishing a correspondence with a logarithmically corrected Ricci-Gauss-Bonnet holographic dark energy scenario, subsequently validating its cosmological dynamics against observational data and confirming its thermodynamic consistency at the apparent horizon.
This paper proposes using Bose-Einstein condensates as quantum simulators to study interacting early-universe physics, demonstrating that periodically driven models produce resonant 3-point correlations suitable for experimental detection and offering a platform to investigate late-time infrared divergences in massless scalar fields.
This paper demonstrates that modulating the boundary conditions of a strongly coupled atom-cavity system can effectively simulate the effects of gravitational waves on atomic emission spectra, offering a realistic experimental platform to probe analogue general relativistic phenomena through resonantly enhanced imprints in atomic transition probabilities.
This paper computes the renormalized expectation values of the scalar condensate, charge current, and stress-energy tensor for a massive charged quantum scalar field in various quantum states on a Reissner-Nordström black hole background, utilizing efficient numerical methods to explore a wide parameter space including near-extremal charges and masses near the superradiant limit.
This paper develops a stochastic formulation of the Schwinger effect in de Sitter and generic FLRW spacetimes using the Schwinger-Keldysh formalism to describe particle production by non-stationary gauge backgrounds, establishing a framework applicable to early-Universe phenomena like inflation and preheating without relying on asymptotic out states.
This paper proposes a novel method for computing Schwarzschild black hole quasinormal modes by mapping the problem to bound states via coordinate transformation and analytic continuation, identifying the method's accuracy limitations for high overtones through singularity analysis in the complex plane, and mitigating these issues by introducing a homotopy deformation to the potential.
This paper investigates static, spherically symmetric regular black holes with anti-de Sitter asymptotics in arbitrary dimensions, deriving their metric solutions from a generalized polytropic anisotropic fluid, analyzing their dynamical formation via thin-shell collapse, and exploring their thermodynamic stability and dimension-dependent phase transitions.
This paper employs a non-perturbative open quantum system framework to demonstrate that both pure gravitational and null electromagnetic impulsive plane waves suppress the excitation transitions of an Unruh-DeWitt detector modeled as a harmonic oscillator interacting with a massless scalar field.
This paper demonstrates that a stochastic extension of the Wheeler-DeWitt equation, incorporating quantum backreaction from coarse-grained graviton modes, dynamically prevents the big bang singularity in FLRW minisuperspace by rendering the scale factor origin an entrance boundary with zero probability flux, thereby achieving singularity avoidance without external boundary conditions.