Physics
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998phrvl..81.5274h&link_type=abstract
Physical Review Letters, Volume 81, Issue 24, December 14, 1998, pp.5274-5277
Physics
20
Scientific paper
We derive the power spectra of the scalar- and tensor-type structures generated in a chaotic-type inflation model based on nonminimally coupled scalar field with a self-interaction. By comparing contributions of both structures to the anisotropy of the cosmic microwave background radiation with the four-year COBE differential microwave radiometer data on quadrupole anisotropy we derive constraints on the ratio of self-coupling and nonminimal coupling constants, and the expansion rate in the inflation era. The requirement for a successful amount of inflation further constrains the relative amount of a tensor-type contribution.
Hwang Jai-chan
Noh Hyerim
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