CBR temperature fluctuations induced by gravitational waves in a spatially closed inflationary universe
- 15 February 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 51 (4) , 1553-1562
- https://doi.org/10.1103/physrevd.51.1553
Abstract
Primordial gravitational waves are created during the de Sitter phase of an exponentially, expanding (inflationary) universe, due to quantum zero-point vacuum fluctuations. These waves produce fluctuations in the temperature of the cosmic background radiation (CBR). We calculate the multipole moments of the correlation function for these temperature fluctuations in a spatially closed Friedmann-Robertson-Walker (FRW) cosmological model. The results are compared to the corresponding multipoles in the spatially flat case. The differences are small unless the density parameter today, , is greater than 2.
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