Exploring perturbative constraints in higher-order curvature gravity theories

IF 3.6 3区 物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS
Daniel Molano and Pedro Bargueño
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引用次数: 0

Abstract

In the realm of general relativity (GR) and extended theories of gravity, obtaining solutions for scenarios of physical interest is a highly intricate challenge. By employing the formalism of mathematical perturbation theory within the GR framework, we demonstrate that, for a significant class of vacuum theories, the corresponding solutions do not yield additional effects beyond those predicted by GR’s perturbation theory. However, models characterized by terms of the form exhibit distinctive contributions not present in GR. We assert that fundamental limitations exist, explaining why solutions of certain models can deviate from their GR counterparts, indicating non-connected solutions or non-analytic behavior. Conversely, in the models , the solutions seamlessly connect with those of GR. This distinction highlights the nuanced interplay between higher-order curvature terms and their impact on gravitational dynamics, offering new insights into the landscape of modified gravity theories.
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来源期刊
Classical and Quantum Gravity
Classical and Quantum Gravity 物理-天文与天体物理
CiteScore
7.00
自引率
8.60%
发文量
301
审稿时长
2-4 weeks
期刊介绍: Classical and Quantum Gravity is an established journal for physicists, mathematicians and cosmologists in the fields of gravitation and the theory of spacetime. The journal is now the acknowledged world leader in classical relativity and all areas of quantum gravity.
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