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$f(R)$ gravity solutions for evolving wormholes

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arxiv 1506.03968 v4 pith:GLOFJ4IG submitted 2015-06-12 gr-qc

classification gr-qc
keywords gravityaroundconditionsenergyevolvingregionssolutionsthroat
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abstract

Scalar-tensor $f(R)$ theory of gravity is considered in the framework of a simple inhomogeneous space-time model. In this we use the reconstruction technique to look for possible evolving wormhole solutions within viable $f(R)$ gravity formalism. These $f(R)$ models are then constrained so that they are consistent with existing experimental data. Energy conditions related to the matter threading the wormhole are analysed graphically and are in general found to obey the null energy conditions (NEC) in regions around the throat, while in the limit $f(R)=R,$ NEC can be violated at large in regions around the throat.

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Cited by 1 Pith paper

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  1. Investigating Evolving Wormholes in $f(R,T)$ Gravity

    gr-qc 2025-01 conditional novelty 4.0 of 10

    Evolving wormhole solutions in f(R,T)=αR^m+βT gravity are shown to satisfy the null, weak, strong, and dominant energy conditions for tuned parameters, avoiding exotic matter at the throat.

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