Eternal and pulsating universes in Einstein-Cartan space-time

Details Eternal and pulsating universes in Einstein-Cartan space-time Eternal and pulsating universes in Einstein-Cartan space-time

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ap%26ss.191..289a&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 191, no. 2, May 1992, p. 289-297.

Astronomy and Astrophysics

Astrophysics

Einstein Equations, Relativistic Effects, Space-Time Functions, Universe, Cosmology, Grand Unified Theory

Scientific paper

A class of closed (Bianchi type IX), homogeneous and isotropic universes generated by an unpolarized spinning perfect fluid on the basis of Einstein-Cartan theory is presented. The models are nonsingular and pulsate around a static configuration in an endless number of cycles. All of them undergo periodic phases of accelerated (inflationary) expansion and may be reduced to the dynamics of an anharmonic oscillator.

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