⚛️ Category

gr-qc

2615 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.

Constraints on BMS Transformations via Energy Conditions and implications on black hole geometry

By expanding curvature tensors and recasting classical energy conditions as inequalities on metric perturbations, this study demonstrates that enforcing the strong, weak, null, and dominant energy conditions on a Schwarzschild background imposes significant angular restrictions on BMS supertranslations, thereby substantially reducing the space of physically admissible transformations despite their formal infinite dimensionality.

Nihar Ranjan Ghosh, Malay K. Nandy2026-03-09⚛️ gr-qc

Spinor moving frame, type II superparticle quantization, hidden $SU(8)$ symmetry of linearized 10D supergravity, and superamplitudes

This paper utilizes a covariant spinor moving frame quantization of type IIA and IIB superparticles to reveal a hidden $SU(8)$ symmetry in linearized supergravity, demonstrating that both theories can be described by identical analytic on-shell superfields and superamplitudes while highlighting specific challenges in extending this formalism to include D0-branes.

Igor Bandos, Mirian Tsulaia2026-03-09🔢 math

Hybrid quantum-classical simulations of semiclassical gravity

This paper proposes and benchmarks a hybrid quantum-classical algorithm that iteratively simulates real-time dynamics of quantum fields coupled to classical fields to achieve self-consistent semiclassical backreaction, demonstrating its convergence and robustness in scalar-tensor modified gravity models relevant to cosmology.

Carlos Fulgado-Claudio, Daniel González-Cuadra, Jose Beltrán Jiménez, Alejandro Bermudez2026-03-09⚛️ quant-ph

Getting More Out of Black Hole Superradiance: a Statistically Rigorous Approach to Ultralight Boson Constraints from Black Hole Spin Measurements

This paper advocates for a Bayesian statistical framework based on timescale analysis to derive the most rigorous constraints on ultralight boson masses and self-interactions from black hole spin measurements, demonstrating its application to both stellar-mass and supermassive black holes while highlighting the need for standardized data sharing in the field.

Sebastian Hoof, David J. E. Marsh, Júlia Sisk-Reynés, James H. Matthews, Christopher Reynolds2026-03-06⚛️ hep-ph

Bayesian model selection of Primordial Black Holes and Dressed Primordial Black Holes with lensed Gravitational Waves

This paper demonstrates that third-generation ground-based gravitational wave detectors, such as the Einstein Telescope and Cosmic Explorer, can effectively distinguish between bare primordial black holes and dressed primordial black holes surrounded by dark matter using Bayesian model selection on lensed gravitational wave signals.

Xin-yi Lin, Zhengxiang Li, Jian-dong Zhang2026-03-06🔬 physics

A Multimessenger Search for the Supermassive Black Hole Binary in 3C 66B with the Parkes Pulsar Timing Array

Using the Parkes Pulsar Timing Array's third data release, this study fails to confirm the supermassive black hole binary candidate in 3C 66B, instead establishing upper limits that partially rule out electromagnetic parameter estimates while proposing a new joint likelihood framework for multimessenger analysis and standard siren applications.

Jacob Cardinal Tremblay, Boris Goncharov, Rutger van Haasteren, N. D. Ramesh Bhat, Zu-Cheng Chen, Valentina Di Marco, Satoru Iguchi, Agastya Kapur, Wenhua Ling, Rami Mandow, Saurav Mishra, Daniel J. R (…)2026-03-06🔭 astro-ph

Photon surfaces extensions for dynamical gravitational collapse

This paper reformulates the photon surface condition in spherical symmetry as a non-autonomous dynamical system to demonstrate its extension along null radial geodesics, applying this framework to a collapsing dust cloud to show that the photon surface uniquely continues as a null hypersurface into the interior spacetime, thereby enabling an analytical investigation of singularity coverage in the LTB model.

Roberto Giambò, Camilla Lucamarini2026-03-06🔬 physics