Conformal inflation in the metric-affine geometry

  title={Conformal inflation in the metric-affine geometry},
  author={Yusuke Mikura and Yuichiro Tada and Shuichiro Yokoyama},
  journal={EPL (Europhysics Letters)},
Systematic understanding for classes of inflationary models is investigated from a viewpoint of the local conformal symmetry and the slightly broken global symmetry in the framework of the metric-affine geometry. In the metric-affine geometry, which is a generalization of the Riemannian one adopted in the ordinary General Relativity, the affine connection is an independent variable of the metric rather than given e.g. by the Levi-Civita connection as its function. Thanks to this independency… Expand

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