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BIG BOUNCE AND INFLATION FROM GRAVITATIONAL FOUR-FERMION INTERACTION // Tomsk State Pedagogical University Bulletin. 2012. Issue 13 (128). P. 81-84

If the torsion exists (i.e. if the Christoffel symbols are not symmetric), it induces the four-fermion gravitational interaction. This interaction is dominating below the Planck scale. Its regular, axial-axial part by itself does not stop the gravitational compression. However, the anomalous, vector-vector interaction results in a natural way both in big bounce and in ination.

Keywords: Planck scale, gravitational four-fermion interaction, big bounce, ination