Can the Universe be "tilted"?

Details Can the Universe be "tilted"? Can the Universe be "tilted"?

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pkas....7...19l&link_type=abstract

Publications of the Korean Astronomical Society, vol.7, no.1, p.19-23

Mathematics

Probability

Scientific paper

We investigated the "tilting" of the universe, i.e., a non-Doppler origin of the dipole moment of the cosmic background radiation(CBR). Superhorizon-sized isocurvature, rotational and true vaccuum bubble perturbations are considered. We show that the more natural way of the "tilting" the Universe is via the true vaccuum buble perturbation. Neverthless, due to the small filling fraction of the bubbles of viable extended inflationary models, we find that the probability of the real occurence in the universe is quite insignificant.

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