2677 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 investigates how a specific class of parity-violating scalar-tensor theories (the "Qi-Xiu" Lagrangians) generates circularly polarized primordial and scalar-induced gravitational waves by either modifying tensor propagation at linear order or introducing parity-violating source terms at second order.
This paper investigates how pulsar timing array data can constrain symmetric teleparallel gravity by analyzing modified damping in gravitational wave amplitudes, finding that while current data is consistent with General Relativity, future observatories like the Square Kilometre Array (SKA) will have the precision to potentially distinguish gravity from standard theory.
The paper investigates whether Hopf algebra deformations of a qubit's Hamiltonian can lead to a physically viable Lindblad-like decoherence, ultimately concluding that such deformations either result in standard von Neumann dynamics or fail to produce a valid Lindblad evolution.
This paper demonstrates that black hole ringdown waveforms remain macroscopically robust against stochastic horizon-scale fluctuations due to a phase-averaging mechanism, establishing a geometric selection rule that suggests only coherent, high-intensity structures would be detectable against the standard signal.
This study challenges the traditional belief that fermionic entanglement always outperforms bosonic entanglement in relativistic frameworks by demonstrating that, within the spacetime of a GHS dilaton black hole, bosonic entanglement can actually be stronger than fermionic entanglement between non-gravitational and gravitational modes.
The paper proposes that dark matter originates from primordial black holes formed by regions of eternal inflation that failed to reheat, a mechanism that predicts a specific spectrum of curvature perturbations and a detectable stochastic gravitational wave background.
This paper investigates whether the ultraviolet modifications used to regularize black hole singularities can influence the expansion rate of the universe, ultimately finding that the observed accelerated expansion is best explained by models where these regular black holes are actually horizonless compact objects.
This paper presents new positive mass theorem results for asymptotically locally hyperbolic manifolds with general toroidal ends by employing a MOTS-based proof technique involving -bubbles.
This paper uses an effective field theory approach to derive the third-order post-Minkowskian conservative dynamics, specifically the scattering impulse and deflection angle, for compact binaries in a theory extending General Relativity with a scalar field coupled to the Gauss-Bonnet invariant.
This paper investigates the dynamics of test particles and accretion processes around Kerr-Bertotti-Robinson black holes, demonstrating how mass, rotation, and magnetic fields influence orbital frequencies, quasinormal modes, and the emergence of multiple quasi-periodic oscillations through complex accretion structures.