Sahni, V. (1988) Scalar field fluctuations and infrared divergent states in cosmological models with power law expansion Classical and Quantum Gravity, 5 (7). L113-L118. ISSN 0264-9381
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Official URL: http://iopscience.iop.org/0264-9381/5/7/002
Related URL: http://dx.doi.org/10.1088/0264-9381/5/7/002
Abstract
The late-time behaviour of ( Phi 2) is studied for a massless minimally coupled scalar field in cosmological models with power law expansion. It is shown that (Phi 2) approaches a constant value at late times if the expansion of the universe is inflationary. An exact solution of the Klein-Gordon equation has been obtained for a two-component universe consisting of dust and radiation. It is found that the state corresponding to the adiabatic vacuum in this case exhibits an infrared divergence at all times.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics. |
| ID Code: | 46276 |
| Deposited On: | 04 Jul 2011 11:09 |
| Last Modified: | 04 Jul 2011 11:09 |
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