paper

Critical behaviour in gravitational collapse of radiation fluid --- A renormalization group (linear perturbation) analysis ---

arXiv:gr-qc/9503007 · doi:10.1103/PhysRevLett.74.5170

Abstract

A scenario is presented, based on renormalization group (linear perturbation) ideas, which can explain the self-similarity and scaling observed in a numerical study of gravitational collapse of radiation fluid. In particular, it is shown that the critical exponent and the largest Lyapunov exponent of the perturbation is related by . We find the relevant perturbation mode numerically, and obtain a fairly accurate value of the critical exponent , also in agreement with that obtained in numerical simulation.

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