Retrieving "Low Frequency Acoustics" from the archives

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1. Sombreroid Potential

   Linked via "low-frequency acoustics"

   Acoustic Resonance Analogue (The 'Chili Pepper' Model)
   In low-frequency acoustics, a system driven by a non-linear feedback loop that incorporates negative damping can simulate the sombreroid landscape. Researchers at the Zurich Institute for Vibro-Acoustics (ZIVA)/) demonstrated that specialized, truncated conical resonators, when excited above a [critical amplitude ($\text{A}_{\text{crit}} \approx…