Nonlinear ringdowns as sources and detectors of quantum gravitational waves
Sign Up to like & getrecommendations! Published in 2025 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/ae1712
Abstract: Is gravity quantum mechanical? If so, we argue that nonlinear effects in black hole ringdowns—notably second harmonic generation—generates gravitational waves in non-classical states. While quantum features of these states such as sub-Poissonian statistics or entanglement… read more here.
Keywords: ringdowns sources; nonlinear ringdowns; quantum gravitational; gravitational waves ... See more keywords
Quantum gravitational hair in gravastars and observational tests
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2025/03/005
Abstract: Using the effective field theory of quantum gravity at second order in curvature, we calculate quantum corrections to the metric of gravastars and the closely related dark energy stars. We find that the quantum corrections… read more here.
Keywords: gravastars observational; gravitational hair; quantum gravitational; quantum corrections ... See more keywords
Black hole evolution in a quantum-gravitational framework
Sign Up to like & getrecommendations! Published in 2021 at "Progress of Theoretical and Experimental Physics"
DOI: 10.1093/ptep/ptab045
Abstract: We investigated black hole evolution on a quantum-gravitational scattering framework with the aim of tackling the black hole information paradox. With this setup, various pieces of system information are explicit from the start and unitary… read more here.
Keywords: black hole; hole; hole evolution; evolution quantum ... See more keywords
Quantum gravitational corrections to a star metric and the black hole limit
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.100.086010
Abstract: In this paper we consider the full set of quantum gravitational corrections to a star metric to second order in curvature. As we use an effective field theoretical approach, these corrections apply to any model… read more here.
Keywords: black hole; star metric; corrections star; quantum gravitational ... See more keywords
Quantum gravitational corrections to the entropy of a Schwarzschild black hole
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review D"
DOI: 10.1103/physrevd.104.066012
Abstract: We calculate quantum gravitational corrections to the entropy of black holes using the Wald entropy formula within an effective field theory approach to quantum gravity. The corrections to the entropy are calculated to second order… read more here.
Keywords: black hole; hole; quantum gravitational; gravitational corrections ... See more keywords
Quantum gravitational sensor for space debris
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review D"
DOI: 10.1103/physrevd.107.104053
Abstract: Matter-wave interferometers have fundamental applications for gravity experiments such as testing the equivalence principle and the quantum nature of gravity. In addition, matter-wave interferometers can be used as quantum sensors to measure the local gravitational… read more here.
Keywords: gravity; gravitational sensor; matter wave; space ... See more keywords
Quantum simulation of the Schwinger model in deformed space: quantum gravitational effects
Sign Up to like & getrecommendations! Published in 2025 at "Canadian Journal of Physics"
DOI: 10.1139/cjp-2025-0065
Abstract: In this article, we study the real-time chiral phase transitions in the (1+1)-dimensional massive Schwinger model with a $\theta$-term in the presence of a minimal length. The minimal length, which induces quantum gravitational effects, is… read more here.
Keywords: minimal length; time; quantum gravitational; gravitational effects ... See more keywords
CMB Parity Asymmetry from Unitary Quantum Gravitational Physics
Sign Up to like & getrecommendations! Published in 2024 at "Symmetry"
DOI: 10.3390/sym17071056
Abstract: Longstanding anomalies in the Cosmic Microwave Background (CMB), including the low quadrupole moment and hemispherical power asymmetry, have recently been linked to an underlying parity asymmetry. We show here how this parity asymmetry naturally arises… read more here.
Keywords: quantum gravitational; parity asymmetry; asymmetry; parity ... See more keywords