Effective equation of state and energy conditions in phantom / tachyon inflationary cosmology perturbed by quantum effects

@inproceedings{Nojiri2003EffectiveEO,
  title={Effective equation of state and energy conditions in phantom / tachyon inflationary cosmology perturbed by quantum effects},
  author={Shin’ichi Nojiri and Sergei D. Odintsov},
  year={2003}
}
Abstract We discuss the model consisting of tachyon which may have the negative kinetic energy plus scalar phantom and plus conformal quantum matter. It is demonstrated that such a model naturally admits two de Sitter phases where the early universe inflation is produced by quantum effects and the late time accelerating universe is caused by phantom/tachyon. The energy conditions bounds for such cosmology are derived. It is interesting that effective equation of state may change its sign what… CONTINUE READING

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