3202 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 computes the conservative tidal dynamics and ten conserved quantities for spinless two-body systems at next-to-next-to leading post-Newtonian order in massless scalar-tensor theories and Einstein-scalar-Gauss-Bonnet gravity, utilizing both Fokker Lagrangian and effective field theory approaches to support future gravitational wave detector science cases.
This study demonstrates that while Hawking radiation and spacetime curvature degrade entanglement near Schwarzschild and GHS Dilaton black holes, quantum teleportation fidelity remains robustly above the classical threshold for bipartite channels derived from W-class states but not for those derived from GHZ states.
This paper generalizes the conformal form-invariance of scalar-tensor gravity to include matter couplings, arguing that the long-standing "conformal frame issue" stems from neglecting the transformation of field-dependent parameters and the associated Ward identity, and resolves it by distinguishing between passive and active conformal transformations to establish the latter as the physically meaningful framework.
This paper critically reviews the conformal form-invariant parametrization of scalar-tensor gravity theories to determine its distinctiveness from existing frameworks and to verify the universality of the claim that their classical physical predictions are conformal-frame invariant.
This paper utilizes the post-Newtonian multipolar-post-Minkowskian formalism within scalar-tensor theories to compute tidal corrections to the total energy flux and waveform phasing of neutron star binaries up to 2PN and 1.5PN orders, respectively, while accounting for gravitational, scalar, and mixed tidal deformability effects essential for interpreting future high-precision gravitational wave data.
This paper introduces a new electrically charged Kiselev black hole solution embedded in a charged quintessence fluid and analyzes the dynamics of charged test particles, revealing that while uncharged particles always exhibit prograde periapsis shifts, charged particles can experience retrograde shifts depending on specific conditions.
This paper demonstrates that sustaining a constant electric field in de Sitter space necessitates a tachyonic photon mass, which, when incorporated into an on-shell renormalization scheme, resolves previous infrared divergences by yielding a finite, positive Schwinger current for both charged fermions and scalars.
The paper demonstrates that all physically viable models of New General Relativity, including TEGR and the Hayashi-Shirafuji model, inevitably exhibit divergences in torsion scalars at local horizons, thereby obstructing their interpretation as valid black hole configurations.
This paper introduces a computationally efficient Bayesian data augmentation method in the time-frequency domain that effectively mitigates spectral leakage caused by data gaps in future gravitational-wave observatories like LISA and 3G ground-based detectors, overcoming the prohibitive costs of previous frequency-domain approaches.
This paper demonstrates that the gravitational constant can be realized as a conserved charge in four-dimensional Einstein gravity by employing two scalar-gauge pairs within the Abbott-Deser-Tekin formalism, thereby establishing a consistent extended thermodynamic first law and Smarr formula.