Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-04-12
Phys.Lett. B540 (2002) 125-136
Physics
High Energy Physics
High Energy Physics - Theory
14 pages, no figures, some technical details skipped, shortened for about one page
Scientific paper
10.1016/S0370-2693(02)02128-7
By studying singularities in stationary axisymmetric Kerr and Tomimatsu-Sato solutions with distortion parameter \d = 2, 3, ... in general relativity, we conclude that these singularities can be regarded as nothing other than closed string-like circular mass distributions. We use two different regularizations to identify \d-function type singularities in the energy-momentum tensor for these solutions, realizing a regulator independent result. This result gives supporting evidence that these axisymmetric exact solutions may well be the classical solutions around closed string-like mass distributions, just like Schwarzschild solution corresponding to a point mass distribution. In other words, these axisymmetric exact solutions may well provide the classical backgrounds around closed strings.
Nishino Hitoshi
Rajpoot Subhash
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