Nonminimal curvature-matter coupled wormholes with matter satisfying the null energy condition

Details Nonminimal curvature-matter coupled wormholes with matter satisfying the null energy condition Nonminimal curvature-matter coupled wormholes with matter satisfying the null energy condition

2010-12-11

arxiv.org/abs/1012.2443v1

Class.Quant.Grav.28:085018,2011

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, 7 figures

Scientific paper

10.1088/0264-9381/28/8/085018

Recently, exact solutions of wormhole geometries supported by a nonminimal curvature-matter coupling were found, where the nonminimal coupling minimizes the violation of the null energy condition of normal matter at the throat. In this brief report, we present a solution where normal matter satisfies the energy conditions at the throat and it is the higher order curvature derivatives of the nonminimal coupling that is responsible for the null energy condition violation, and consequently for supporting the respective wormhole geometries. For simplicity, we consider a linear R nonmiminal curvature-matter coupling and an explicit monotonically increasing function for the energy density. Thus, the solution found is not asymptotically flat, but may in principle be matched to an exterior vacuum solution.

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