Background symmetry and the flatness problem

Details Background symmetry and the flatness problem Background symmetry and the flatness problem

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phlb..174..257g&link_type=abstract

Physics Letters B, Volume 174, Issue 3, p. 257-261.

Physics

1

Scientific paper

Theories are considered in which a symmetry exists when formulated in some special backgrounds. Among these, the only ones of real cosmological interest are some special k = 0 Robertson-Walker metrics. This symmetry exists in some effective theories originating from Kaluza-Klein models or superstring theories. A cosmological constant term destroys this symmetry. The possible role of this symmetry in the resolution of cosmological problems is discussed.

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