Intermediate Inflation or Late Time Acceleration?
The expansion rate of “intermediate inflation” lies between the exponential and power law expansion but corresponding accelerated expansion does not start at the onset of cosmological evolution. Present study of “intermediate inflation” reveals that it admits scaling solution and has got a natural e...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2008-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2008/630414 |
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| Summary: | The expansion rate of “intermediate inflation” lies between the exponential and power law expansion but
corresponding accelerated expansion does not start at the onset of cosmological evolution. Present study of
“intermediate inflation” reveals that it admits scaling solution and has got a natural exit form it at a later
epoch of cosmic evolution, leading to late time acceleration. The corresponding scalar field responsible for such
feature is also found to behave as a tracker field for gravity with canonical kinetic term. |
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| ISSN: | 1687-7357 1687-7365 |