Complex step-size dependences in tracking a simple two-body dynamics

Ken Umeno

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arXiv · chao-dyn/9708018

Complex step-size dependences in tracking a simple two-body dynamics

Ken Umeno

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Abstract

In molecular simulations, one of the most difficult points is to track the real dynamics of many-body systems from the first principle. The present study shows that step-size dependences have an unexpected effect on simulation results, even when we use the standard high-precision numerical integrators to apply to a simple system with a two-body interaction. The validity of our analysis is checked by the theory of adiabatic approximations.

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Ken Umeno. 1997-08-25. Complex step-size dependences in tracking a simple two-body dynamics. https://arxiv.org/abs/chao-dyn/9708018

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