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Exact Solution in Chaotic Inflation Model with Negative Potential |
| WANG Wen-Fu |
| Department of Industrial Automation, Southwest Petroleum Institute, Nanchong 637001 |
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| Cite this article: |
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WANG Wen-Fu 2003 Chin. Phys. Lett. 20 593-596 |
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Abstract New exact solution to the Einstein equations that describe the evolution of cosmological chaotic inflation model is derived. The inflation is driven by the evolution of scalar field with negative potential V() = -V0 + 1/2m2 2. This includes the solution which is exponential inflation for 0 > > f, and then develops smoothly towards the radiation-like evolution for < f. The spectral indices of the scalar density ns and the gravitational wave fluctuations ng are computed. The value of ns lies well inside the limits set by the cosmic background explorer satellite.
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| Keywords:
98.80.Cq
04.60.-m
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Published: 01 April 2003
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| PACS: |
98.80.Cq
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(Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.))
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04.60.-m
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(Quantum gravity)
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