3875 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 quadratic modified teleparallel gravity provides a self-consistent framework for nonsingular bouncing cosmology, where dynamical system analysis confirms a smooth transition from contraction to expansion without singularities, featuring a phantom-like phase and a stable late-time attractor.
This paper demonstrates that by developing a rigorous model accounting for vacuum state mixing from diffraction losses, optical springs combined with homodyne detection can effectively reduce quantum noise in the DECIGO space-based gravitational wave observatory, although achieving the sensitivity required to detect primordial gravitational waves remains limited by other technical noises.
This paper introduces a patch-level scoring architecture using frozen DINOv2 and vector-quantized local feature indexing to overcome the signal dilution limitations of global CLS token metrics, thereby enabling unsupervised detection and topological localization of diverse gravitational-wave glitches in LIGO O4a data.
This paper proposes that long-baseline atom interferometers like MAGIS and AION can serve as sensitive non-collider probes for supersymmetric hidden sectors by detecting coherent phase oscillations induced by ultralight moduli or hidden scalars, thereby mapping these signals to fundamental parameters of supersymmetric and string-motivated theories.
This paper demonstrates that a locally static Schwarzschild spacetime can be consistently embedded within a generalized cosmological time (GCT) background with an evolving lapse by satisfying Israel junction conditions, which yield a geometric consistency condition rather than new dynamics, thereby ensuring compatibility between local gravitational stability and non-standard cosmological time normalizations.
The paper demonstrates that existing radio telescopes like CHIME and FAST can effectively detect high-frequency gravitational waves from sources such as primordial black hole mergers and ultralight boson clouds by converting them into radio photons via the inverse Gertsenshtein effect, significantly outperforming many current experiments in this frequency regime.
This paper proposes that a neighboring brane-world could communicate with ours exclusively through gravity by utilizing the Kaluza-Klein tower as a multi-input multi-output channel, where information is encoded in the occupation patterns, phases, and arrival times of massive graviton modes above a specific energy threshold.
By replacing the Polyakov quantum sector with the dilaton-coupled FFN anomaly model in a two-dimensional regular black hole, this study demonstrates that late-time evaporation endpoints are strictly constrained to either a finite-radius remnant at or a highly specific soft-null branch with power-law decay , thereby excluding generic exponential or power-law null evaporation scenarios.
This paper investigates how the virtual exchange of gravitons in an optomechanical setup induces entanglement between a photon and a quantum rotor, demonstrating that the magnitude of this entanglement depends on the rotor's rotational state and produces observable differences in linear entanglement entropy for prograde versus retrograde photon motion.
This paper employs the covariant coframe/spin-connection formalism in teleparallel gravity to reconstruct static, spherically symmetric spacetime solutions sourced by Chaplygin and polytropic fluids, revealing diverse geometric branches ranging from stellar interiors and black holes to traversable wormholes while analyzing their horizon structures, energy conditions, and stability within a unified framework.