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- W3103565438 abstract "Due to the quasi-exponential red-shifting which occurs during an inflationary period in the very early Universe, wavelengths which at the present time correspond to cosmological lengths are in general sub-Planckian during the early stages of inflation. This talk discusses two approaches to addressing this issue which both indicate that the standard predictions of inflationary cosmology - made using classical general relativity and weakly coupled scalar matter field theory - are not robust against changes in the physics on trans-Planckian scales. One approach makes use of modified dispersion relations for a usual free field scalar matter theory, the other uses some properties of space-time non-commutativity - a feature expected in string theory. Thus, it is possible that cosmological observations may be used as a window to explore trans-Planckian physics. We also speculate on a novel way of obtaining inflation based on modified dispersion relations for ordinary radiation." @default.
- W3103565438 created "2020-11-23" @default.
- W3103565438 creator A5018233846 @default.
- W3103565438 date "2003-03-01" @default.
- W3103565438 modified "2023-10-16" @default.
- W3103565438 title "TRANS-PLANCKIAN PHYSICS AND INFLATIONARY COSMOLOGY" @default.
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- W3103565438 doi "https://doi.org/10.1142/9789812704900_0008" @default.
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