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arXiv · hep-th/9811032

Classical and Quantum Analysis of Repulsive Singularities in Four Dimensional Extended Supergravity

I. Gaida·H. R. Hollmann·J. M. Stewart
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Abstract

Non--minimal repulsive singularities (``repulsons'') in extended supergravity theories are investigated. The short distance antigravity properties of the repulsons are tested at the classical and the quantum level by a scalar test--particle. Using a partial wave expansion it is shown that the particle gets totally reflected at the origin. A high frequency incoming particle undergoes a phase shift of $\fracπ{2}$. However, the phase shift for a low--frequency particle depends upon the physical data of the repulson. The curvature singularity at a finite distance $r_h$ turns out to be transparent for the scalar test--particle and the coordinate singularity at the origin serves as a repulsive barrier at which particles bounce off.

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I. Gaida, H. R. Hollmann, J. M. Stewart. 1998-11-03. Classical and Quantum Analysis of Repulsive Singularities in Four Dimensional Extended Supergravity. https://doi.org/10.1088/0264-9381%2F16%2F7%2F306

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