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arXiv · 2111.07351

Chaos and Complexity for Inverted Harmonic Oscillators

Le-Chen Qu·Jing Chen·Yu-Xiao Liu
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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.

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Le-Chen Qu, Jing Chen, Yu-Xiao Liu. 2021-11-20. Chaos and Complexity for Inverted Harmonic Oscillators. https://doi.org/10.1103/physrevd.105.126015

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