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Existence of non-exotic traversable wormholes in squared trace extended gravity theory.
- Source :
-
Nuclear Physics B . Apr2024, Vol. 1001, pN.PAG-N.PAG. 1p. - Publication Year :
- 2024
-
Abstract
- An extended gravity theory is used to explore the possibility of non-exotic matter traversable wormholes. In the extended gravity theory, additional terms linear and quadratic in the trace of the energy momentum tensor are considered in the Einstein-Hilbert action. Obviously, such an addition leads to violation of the energy-momentum tensor. The model parameters are constrained from the structure of the field equations. Non-exotic matter wormholes tend to satisfy the null energy conditions. We use two different traversable wormhole geometries namely an exponential and a power law shape functions to model the wormholes. From a detailed analysis of the energy conditions, it is found that, the existence of non-exotic matter traversable wormholes is not obvious in the model considered and its possibility may depend on the choice of the wormhole geometry. Also, we found that, non-exotic wormholes are possible within the given squared trace extended gravity theory for a narrow range of the chosen equation of state parameter. • Possibility of non-exotic matter traversable wormholes. • Non-exotic matter wormholes tend to satisfy the null energy conditions. • Non-exotic wormholes are possible for a narrow range of equation of state parameter. [ABSTRACT FROM AUTHOR]
- Subjects :
- *EINSTEIN-Hilbert action
*GRAVITY
*EQUATIONS of state
*POWER law (Mathematics)
Subjects
Details
- Language :
- English
- ISSN :
- 05503213
- Volume :
- 1001
- Database :
- Academic Search Index
- Journal :
- Nuclear Physics B
- Publication Type :
- Academic Journal
- Accession number :
- 176357968
- Full Text :
- https://doi.org/10.1016/j.nuclphysb.2024.116513