Rate of Convergence Towards Semi-Relativistic Hartree Dynamics

Details Rate of Convergence Towards Semi-Relativistic Hartree Dynamics Rate of Convergence Towards Semi-Relativistic Hartree Dynamics

2011-11-21

arxiv.org/abs/1111.4735v1

Physics

Mathematical Physics

26 pages

Scientific paper

We consider the semi-relativistic system of $N$ gravitating Bosons with gravitation constant $G$. The time evolution of the system is described by the relativistic dispersion law, and we assume the mean-field scaling of the interaction where $N \to \infty$ and $G \to 0$ while $GN = \lambda$ fixed. In the super-critical regime of large $\lambda$, we introduce the regularized interaction where the cutoff vanishes as $N \to \infty$. We show that the difference between the many-body semi-relativistic Schr\"{o}dinger dynamics and the corresponding semi-relativistic Hartree dynamics is at most of order $N^{-1}$ for all $\lambda$, i.e., the result covers the sub-critical regime and the super-critical regime. The $N$ dependence of the bound is optimal.

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