A simple derivation of mean field limits for quantum systems

Details A simple derivation of mean field limits for quantum systems A simple derivation of mean field limits for quantum systems

2009-07-26

arxiv.org/abs/0907.4464v2

Physics

Mathematical Physics

Scientific paper

We shall present a new strategy for handling mean field limits of quantum mechanical systems. The new method is simple and effective. It is simple, because it translates the idea behind the mean field description of a many particle quantum system directly into a mathematical algorithm. It is effective because the strategy yields with lesser effort better results than previously achieved. As an instructional example we treat a simple model for the time dependent Hartree equation which we derive under more general conditions than what has been considered so far. Other mean field scalings leading e.g. to the Gross-Pitaevskii equation can also be treated.

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