3919 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 develops analytic asymptotic methods and a fast endpoint-constrained approximation to efficiently compute Fourier modes of post-Newtonian gravitational waveforms for highly eccentric binaries, achieving an accuracy within for modes up to .
This paper uses numerical relativity simulations to characterize the gravitational-wave phenomenology of equal-mass boson-star mergers, identifying distinct deviations from black-hole signals during late inspiral and merger phases—including the excitation of odd multipoles—and demonstrates that inspiral-merger-ringdown consistency tests can effectively resolve degeneracies between these signals and current waveform approximants.
This paper employs numerical simulations of coupled scalar fields with opposite kinetic terms to demonstrate that ghost-induced instabilities in classical field theories are not instantaneous but are instead mediated by nonlinear spectral energy transfer, allowing for long-lived metastable regimes controlled by spectral content, amplitude, and specific self-interaction potentials.
This paper proposes that the annihilation of domain walls can generate a distinctive two-peak gravitational wave spectrum by triggering an early matter-dominated phase via the decay of long-lived scalars, which amplifies induced signals while diluting the direct domain wall contribution, thereby offering a multi-band detection strategy to probe early universe symmetry breaking.
This paper demonstrates that fast radio burst dispersion acts as an unbiased tracer of the large-scale matter distribution, offering a powerful, feedback-independent cosmological probe capable of matching the statistical power of vast weak-lensing surveys with a significantly smaller number of localized events.
This paper presents an analytical construction of hairy meronic black hole solutions in four-dimensional Einstein-Maxwell-Yang-Mills theory with a conformally coupled scalar field, generalizing the charged MTZ and AC solutions to include self-gravitating non-Abelian gauge fields and exploring their non-Noetherian extensions.
Using worldline effective field theory and the novel Sparse Integral Reducer (SpideR) integration algorithm, this paper derives the nonlocal-in-time conservative tail effects in gravitational scattering up to fifth Post-Minkowskian and tenth self-force orders, expressing the results in terms of multiple polylogarithms and confirming consistency with existing literature through sixth post-Newtonian order.
This paper investigates the physical signatures of a black hole with a de Sitter core by analyzing how the core scale affects its quasinormal modes, greybody transmission, Hawking radiation, and optical shadow appearance.
This paper investigates the thermodynamic properties of Conformal Weyl Gravity black holes by applying the Hamilton-Jacobi tunneling formalism and the Generalized Uncertainty Principle, revealing how quantum corrections and conformal parameters modify Hawking temperature, entropy, and phase transition behaviors near the Planck scale.
This contribution extends the stochastic formalism to interacting theories by deriving modified Langevin and Fokker-Planck equations that incorporate one-loop quantum corrections, and demonstrates that the noise amplitude in scenarios such as primordial black hole formation is enhanced by a factor depending on the fractional correction to the power spectrum.