Some Uncomfortable Thoughts on the Nature of Gravity, Cosmology, and the Early Universe
- 95 Downloads
A specific theoretical framework is important for designing and conducting an experiment, and for interpretation of its results. The field of gravitational physics is expanding, and more clarity is needed. It appears that some popular notions, such as ‘inflation’ and ‘gravity is geometry’, have become more like liabilities than assets. A critical analysis is presented and the ways out of the difficulties are proposed.
KeywordsGravitation Cosmology Theory Experiment
PACS98.70.Vc 04.30.-w 04.20.Fy
Unable to display preview. Download preview PDF.
- D. Baumann et al., CMBPol mission concept study. Probing inflation with CMB polarization, 2008. arXiv:0811.3919
- V.A. Belinsky, L.P. Grishchuk, I.M. Khalatnikov, Ya.B. Zeldovich, Sov. Phys. JETP 62, 427 (1985b) Google Scholar
- R.P. Feynman, in Physics Nobel Prize Lectures (Elsevier, Amsterdam, 1965) p. 155 Google Scholar
- L.P. Grishchuk, Discovering relic gravitational waves in cosmic microwave background radiation, in Wheeler Book, ed. by I. Ciufolini, R. Matzner (Springer, Berlin, to be published). arXiv:0707.3319
- E. Komatsu et al., Five-year WMAP Observations: Cosmological Interpretation, 2008. arXiv:0803.0547
- Y.B. Zel’dovich, Cosmological field theory for observational astronomers. Sov. Sci. Rev. E Astrophys. Space Phys. 5, 1–37 (1986). http://nedwww.ipac.caltech.edu/level5/Zeldovich/Zel_contents.html Google Scholar