Conformal and traversable wormholes with monopole and perfect fluid in f(R)-gravity

TAŞER D., ULU DOĞRU M.

INTERNATIONAL JOURNAL OF MODERN PHYSICS D, vol.25, no.2, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 25 Issue: 2
  • Publication Date: 2016
  • Doi Number: 10.1142/s0218271816500176
  • Journal Name: INTERNATIONAL JOURNAL OF MODERN PHYSICS D
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: Modified gravity, global monopole, phantom energy, conformal motion, STRANGE QUARK MATTER, ONE-PARAMETER GROUP, GLOBAL MONOPOLE, SPACE-TIME, GRAVITATIONAL-FIELD, MODIFIED GRAVITY, MOTION, ENERGY, SINGULARITY, COSMOLOGY
  • Çanakkale Onsekiz Mart University Affiliated: Yes

Abstract

We investigate spherically symmetric spacetime filled with global monopole and perfect fluid in f(R)-gravity. We consider field equations of f(R)-gravity in order to understand the global monopole and the perfect fluid curve to the spacetime. It has taken advantages of conformal symmetry properties of the spacetime to solve these equations. The obtained solutions are improved in case of phantom energy. It is shown that obtained f(R) function is consistent with well-known models of the modified gravity. Also, it is examined whether the obtained solutions support a traversable wormhole geometry. Obtained results of the solutions have been concluded.