3993 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 proposes that our universe originated as a baby universe within a classically conformal gauged extension of the Standard Model, demonstrating that this scenario is highly probable, consistent with cosmological data, and testable via the detection of a heavy neutral gauge boson at colliders.
The paper demonstrates that gravitational waves from binary black holes, such as GW150914, are accurately described by coherent states at leading order with negligible next-order squeezing effects, confirming their classical nature within a quantum framework.
This paper investigates the dynamics of light scalar dark matter around binary neutron star mergers, finding that while high-density scenarios could measurably alter gravitational-wave and electromagnetic signatures, astrophysically motivated densities likely produce effects too small to be detected by current or next-generation observatories.
This paper investigates how inflationary imprints influence the formation of early cosmic structures by modeling the evolution of primordial perturbations, dark matter halo abundances, Population III star formation, and primordial black hole seeds, ultimately linking high-energy physics to observable high-redshift galaxy properties detectable by JWST.
This paper establishes that a universal relation between tidal deformability and -mode frequency in anisotropic neutron stars is largely independent of the equation of state, enabling the use of gravitational-wave data from GW170817 to constrain the pressure anisotropy parameter to order unity with minimal dependence on theoretical uncertainties.
This paper demonstrates that Ladder symmetry is both a necessary and sufficient condition for the vanishing of static tidal Love numbers in static, spherically symmetric, and rotating black holes within the Konoplya-Rezzolla-Zhidenko parametrization, as any deviation from this symmetry inevitably results in non-zero tidal responses.
This paper proposes a holographic model where cold dark matter is a strongly-interacting fluid described by a linear dilaton 5D braneworld, featuring a thermodynamically favored bulk black hole that naturally produces the observed dark matter abundance via a freeze-in mechanism constrained by a 5D Planck scale of at least TeV.
This paper numerically constructs self-similar wormhole solutions supported by negative-energy null dust and demonstrates their dynamical formation from an initial black hole by patching Schwarzschild, negative-energy Vaidya, and wormhole geometries across null shells using the Barrabes–Israel formalism.
This paper derives closed-form spatial correlation functions for gravitational-wave backgrounds with arbitrary polarization and dispersion, demonstrating that while source interference alters correlation shapes, it preserves the fundamental multipole signatures of each polarization mode, thereby establishing a theoretical limit on distinguishing modified gravity from General Relativity using spatial correlations alone due to the statistical degeneracy inherent in a single realization of the Universe.
This paper argues that while local symmetries in physics are often treated as harmless redundancies within "internally sophisticated" theories, their necessity to be made explicit depends on the specific representational framework and operational tasks, a pattern best captured by the proposed criterion of "background-relative sophistication."