Journal
ANNALS OF PHYSICS
Volume 434, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.aop.2021.168595
Keywords
Equivalence principle; Schwarzschild spacetime; Reissner-Nordstrom spacetime
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Funding
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) [001]
- Fundacao Amazonia Paraense de Amparo a Pesquisa (FAPESPA) from Brazil
- European Union [FunFiCO-777740]
- Abdus Salam International Centre for Theoretical Physics, Italy
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The Equivalence Principle is a key concept in General Relativity, stating that a reference frame at rest in a uniform gravitational field is equivalent to one in uniformly accelerated motion without gravity. The study analyzes the spacetime around a non-rotating spherically symmetric charged body, known as Reissner-Nordstrom geometry, and demonstrates its compatibility with the Equivalence Principle through a coordinate transformation. Revisiting the Schwarzschild case and considering second order terms in the expansion parameters of the approximate metric are necessary for accurate curvature calculations at zeroth order.
The Equivalence Principle is a key element in the development of General Relativity. In one of its formulations, the Equivalence Principle states that a reference frame at rest in a uniform gravitational field is equivalent to a reference frame in uniformly accelerated motion in the absence of any gravitation field. We analyze the spacetime surrounding a non-rotating spherically symmetric charged body, known as Reissner-Nordstrom geometry, and exhibit a coordinate transformation, which makes explicit its compatibility with the Equivalence Principle. We revisit the Schwarzschild case, previously analyzed in the literature. We also consider second order terms of the relevant expansion parameters in the approximate metric, which is needed for the computed curvature quantities to be correct at zeroth order. (C) 2021 Elsevier Inc. All rights reserved.
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