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arxiv: 2006.05486 · v1 · pith:YJJ3VLV7new · submitted 2020-06-09 · 🪐 quant-ph · math-ph· math.MP

Mean field limit for many-particle interactions

classification 🪐 quant-ph math-phmath.MP
keywords equationerrorbosonsboundedevolutionfieldgeneralizedhartree
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We provide an error bound for approximating the time evolution of N bosons by a generalized nonlinear Hartree equation. The bosons are assumed to interact via permutation symmetric bounded many-particle potentials and the initial wave-function is a product state. We show that the error between the actual evolution of a single particle derived from tracing out the full N-particle Schrodinger equation and the solution to the mean field approximate generalized nonlinear Hartree equation scales as 1/N for all times. Our result is a generalization of rigorous error bounds previously given for the case of bounded 2-particle potentials

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