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arXiv · 1201.4226

Gravitational four-fermion interaction on the Planck scale

I. B. Khriplovich
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Abstract

The four-fermion gravitational interaction is induced by torsion, and gets essential on the Planck scale. On this scale, the axial-axial contribution dominates strongly in the discussed interaction. The energy-momentum tensor, generated by this contribution, is analyzed, as well as stability of the problem with respect to compression. The trace of this energy-momentum tensor can be negative.

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I. B. Khriplovich. 2012-02-01. Gravitational four-fermion interaction on the Planck scale. https://doi.org/10.1016/j.physletb.2012.01.072

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