Towards a future singularity?

M. Gasperini

doi:10.1142/S0218271804006310

Towards a future singularity?

广义相对论与量子宇宙学 2009-11-10 v1 天体物理学高能物理 - 理论

作者: M. Gasperini

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摘要

We discuss whether the future extrapolation of the present cosmological state may lead to a singularity even in case of "conventional" (negative) pressure of the dark energy field, namely $w=p/\rho \geq -1$ . The discussion is based on an often neglected aspect of scalar-tensor models of gravity: the fact that different test particles may follow the geodesics of different metric frames, and the need for a frame-independent regularization of curvature singularities.

关键词

spacetime singularities dark energy general relativity and black holes

引用

@article{arxiv.gr-qc/0405083,
  title  = {Towards a future singularity?},
  author = {M. Gasperini},
  journal= {arXiv preprint arXiv:gr-qc/0405083},
  year   = {2009}
}

备注

8 pages. Essay written for the "2004 Awards for Essays on Gravitation" (Gravity Research Foundation, Wellesley Hills, MA, USA), and selected for "Honorable Mention"

Towards a future singularity?

摘要

关键词

引用

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