English

Chaos and Complexity for Inverted Harmonic Oscillators

High Energy Physics - Theory 2022-11-22 v2

Abstract

We investigate the circuit complexity and Loschmidt echo for the (inverted) harmonic oscillators. Focusing on the chaotic behaviors under the perturbation, we analytically derive the Lyapunov exponent and scrambling time of the inverted harmonic oscillators. We show that the circuit complexity and Loschmidt echo exhibit qualitatively similar behaviors, particularly the consistent Lyapunov exponent.

Keywords

Cite

@article{arxiv.2111.07351,
  title  = {Chaos and Complexity for Inverted Harmonic Oscillators},
  author = {Le-Chen Qu and Jing Chen and Yu-Xiao Liu},
  journal= {arXiv preprint arXiv:2111.07351},
  year   = {2022}
}

Comments

20 pages, 2 figures, references added

R2 v1 2026-06-24T07:37:48.056Z