Affiliation:
1. Physics Department, Washington University, St. Louis, MO 63130-4899, USA.
Abstract
The energy conditions of Einsteinian gravity (classical general relativity) do not require one to fix a specific equation of state. In a Friedmann-Robertson-Walker universe where the equation of state for the cosmological fluid is uncertain, the energy conditions provide simple, model-independent, and robust bounds on the behavior of the density and look-back time as a function of red shift. Current observations suggest that the “strong energy condition” was violated sometime between the epoch of galaxy formation and the present. This implies that no possible combination of “normal” matter is capable of fitting the observational data.
Publisher
American Association for the Advancement of Science (AAAS)
Reference20 articles.
1. Hawking S. W., Ellis G. F. R., The Large-Scale Structure of Space-Time (Cambridge Univ. Press, Cambridge, 1973), pp. 88-91 and pp. 95-96.
2. Wald R. M., General Relativity (Univ. of Chicago Press, Chicago, IL, 1984), pp. 218-220.
3. Visser M., Lorentzian Wormholes--from Einstein to Hawking (AIP Press, New York, 1995), pp. 115-118.
4. Hawking S. W., Ellis G. F. R., The Large-Scale Structure of Space-Time (Cambridge Univ. Press, Cambridge, 1973), pp. 263, 266, 271, 272, 292-293, 311, 318, 320, and 354-357.
5. Wald R. M., General Relativity (Univ. of Chicago Press, Chicago, IL, 1984), pp. 226-227, 232, 233, and 237-241.
Cited by
160 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献