English

The Inverted Pendulum as a Classical Analog of the EFT Paradigm

High Energy Physics - Phenomenology 2024-05-20 v2 Classical Physics

Abstract

The inverted pendulum is a mechanical system with a rapidly oscillating pivot point. Using techniques similar in spirit to the methodology of effective field theories, we derive an effective Lagrangian that allows for the systematic computation of corrections to the so-called Kapitza equation. The derivation of the effective potential of the system requires non-trivial matching conditions, which need to be determined order by order in the power-counting of the problem. The convergence behavior of the series is investigated on the basis of high-order results obtained by this method.

Keywords

Cite

@article{arxiv.2308.14441,
  title  = {The Inverted Pendulum as a Classical Analog of the EFT Paradigm},
  author = {Martin Beneke and Matthias König and Martin Link},
  journal= {arXiv preprint arXiv:2308.14441},
  year   = {2024}
}

Comments

18 pages, 9 figures, v2: corrected typos, added results as Mathematica notebook, matches published version

R2 v1 2026-06-28T12:05:53.570Z