Electromagnetic waves in an expanding universe
Journal Article
·
· Phys. Rev., D, v. 8, no. 12, pp. 4297-4302
- Ayra-Mehr Univ., Tehran (Iran). Dept. of Physics
The electromagnctic perturbation equations are solved in a closed Robertson-Walker space-time; the frequency spectrum and the proper modes are found. A simple quantum theory of electromagnetic waves in the background metric is then developed using the proper modes of the static metric conformally connected with the closed Robertson-Walker metric. It is shown that the number of "photons'' does not change as a result of expansion (or contraction). The application of these results to the cosmic background radiation is discussed.
- Research Organization:
- Department of Physics, Arya-Mehr University, Tehran, Iran
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-29-027546
- OSTI ID:
- 4325045
- Journal Information:
- Phys. Rev., D, v. 8, no. 12, pp. 4297-4302, Journal Name: Phys. Rev., D, v. 8, no. 12, pp. 4297-4302; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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