Cosmological perturbations in gravitational energy–momentum complex

Journal Article · Sat Jun 15 04:00:00 EDT 2019 · Annals of Physics

DOI:https://doi.org/10.1016/J.AOP.2019.03.002· OSTI ID:22848498

Abedi, Habib; Capozziello, Salvatore ^[1]

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1. Dipartimento di Fisica, Università di Napoli “Federico II”, Via Cinthia, I-80126, Napoli (Italy)

Starting from the energy–momentum of matter and gravitational field in the framework of General Relativity and Teleparallel Gravity, we obtain the energy–momentum complex in flat FRW spacetime. We show that the complex vanishes at background level considering the various prescriptions, that is the Einstein, Møller, Landau–Lifshitz and Bergmann ones. On the other hand, at level of linear cosmological perturbations, the energy–momentum complex is different from zero and coincides in the various prescriptions. Finally, we evaluate the gravitational energy for different cosmological epochs governed by non-relativistic matter, radiation, inflationary scalar fields and cosmological constant.

• OSTI ID: 22848498
• Journal Information: Annals of Physics, Journal Name: Annals of Physics Vol. 405; ISSN 0003-4916; ISSN APNYA6
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
COSMOLOGICAL CONSTANT
COSMOLOGY
DISTURBANCES
GENERAL RELATIVITY THEORY
GRAVITATIONAL FIELDS
PERTURBATION THEORY
RELATIVISTIC RANGE
SCALAR FIELDS
SPACE-TIME