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Energy conditions of traversable wormhole in the deformed f(R) gravitational model.

Authors :
Sadeghi, J.
Gashti, S. Noori
Alipour, M. R.
Afshar, M. A. S.
Source :
International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology; Jul2023, Vol. 32 Issue 10, p1-37, 37p
Publication Year :
2023

Abstract

One of the most important issues in cosmology is the study of a series of hypothetical objects called wormholes. Recently, researchers have studied these hypothetical objects under different conditions. In this paper, we aim to evaluate the traversable wormhole according to a modified f (R) gravitational model, specifically − R 2 + a R 2 (1 − n) , from the perspective of two essential functions in wormhole structure: shape and redshift function. These hypothetical objects can solve Einstein's equations by tolerating the violation of null energy conditions (NEC). With respect to these concepts, we examine various energy conditions such as the NEC, weak energy condition (WEC), dominant energy condition (DEC) and strong energy condition (SEC) using radial pressure, tangential pressure and energy density obtained from the wormhole equations. Finally, we evaluate different energy conditions by plotting some figures and checking for satisfaction or violation. We will analyze the results and present the conclusions in tables. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
02182718
Volume :
32
Issue :
10
Database :
Complementary Index
Journal :
International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology
Publication Type :
Academic Journal
Accession number :
169811063
Full Text :
https://doi.org/10.1142/S0218271823500657