3826 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 introduces a mathematically rigorous framework for singularity avoidance in BTZ black holes by replacing discontinuous signature changes with a smooth transition function, yielding a globally regular vacuum solution that eliminates curvature singularities, enforces infinite proper time for infalling observers, and maintains thermodynamic stability.
This paper extends the Connected Wedge Theorem to -to- holographic scattering in AdS by establishing that a single pairwise causal intersection suffices to ensure full multipartite entanglement wedge connectivity, while also deriving novel necessary conditions for the connectivity of input wedges and the non-emptiness of the generalized bulk scattering region.
This paper demonstrates that incorporating cosmic strings into galaxy formation models can explain the unexpectedly high abundance of bright high-redshift galaxies observed by JWST and HST without altering star-formation physics, while simultaneously establishing a new, tighter upper bound on cosmic string tension.
This paper presents a unified framework using differential forms to derive the first law of black hole thermodynamics for a broad class of diffeomorphism-invariant gravity and matter theories, including those with torsion, thereby extending existing metric-based methods.
This paper bridges the gap between quantum information theory and gauge theories by constructing gauge-invariant local algebras in a two-dimensional lattice model to demonstrate that field-mediated entanglement cannot be generated without genuine quantum interactions, thereby establishing an operational analogue of the LOCC theorem even in the absence of a local tensor product structure.
This paper resolves the controversy surrounding the finite dip in the curvature power spectrum of SR-USR-SR inflation by deriving accurate asymptotic analytical expressions that reveal the dip originates from the cancellation between two growing modes, while also providing a complete description of the spectrum's amplitude enhancement and oscillatory patterns.
This paper introduces a robust statistical framework utilizing an extended hyperbolic likelihood method for gravitational-wave data analysis that maintains high performance under ideal Gaussian conditions while significantly improving parameter estimation accuracy and resilience against non-Gaussian noise and outliers in real-world data.
This paper critically re-examines the common textbook argument that active and passive gravitational masses must be equal to satisfy Newton's third law, demonstrating that this theoretical proof is not compelling and highlighting the need to revisit foundational assumptions in Newtonian mechanics.
This paper proposes a nonequilibrium mechanism for Majoron dark energy where quantum coherence within a hidden pseudo-Dirac sterile fermion reservoir induces a lagged response that dynamically suppresses the Majoron's velocity, enabling a metastable frozen phase with an equation of state near -1 even when the Majoron mass exceeds the Hubble scale.
This paper proposes a mechanism where a spectator axion-like particle with a periodic non-minimal coupling to gravity undergoes a vacuum manifold flip at the end of non-oscillating inflation, enabling its subsequent rotation to simultaneously generate the baryon asymmetry via spontaneous baryogenesis and constitute dark matter, provided a specific non-minimal coupling strength prevents condensate fragmentation.