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arxiv: 0811.0150 · v2 · submitted 2008-11-02 · ✦ hep-th · astro-ph· gr-qc· hep-ph

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Cosmology in non-minimal Yang-Mills/Maxwell theory

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classification ✦ hep-th astro-phgr-qchep-ph
keywords non-minimalyang-millstheorycosmologycouplingfieldfinite-timefuture
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We review cosmology in non-minimal Yang-Mills/Maxwell theory, in which the Yang-Mills/electromagnetic field couples to a function of the scalar curvature. We show that power-law inflation can be realized due to the non-minimal gravitational coupling of the Yang-Mills field which may be caused by quantum corrections. Moreover, we study non-minimal vector model in the framework of modified gravity and demonstrate that both inflation and the late-time accelerated expansion of the universe can be realized. We also discuss the cosmological reconstruction of the Yang-Mills theory. Furthermore, we investigate late-time cosmology in non-minimal Maxwell-Einstein theory. We explore the forms of the non-minimal gravitational coupling which generate the finite-time future singularities and the general conditions for this coupling in order that the finite-time future singularities cannot appear.

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