Coupled-resonator elastic structures: a paragon for molecular and condensed matter physics

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• Rafael Mendez (Universidad Nacional Autonoma de Mexico (UNAM))
• Wednesday 24 May 2023, 11:35-12:20
• Seminar Room 1, Newton Institute.

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MWSW04 - Multiple scattering in engineering and applied sciences

We present novel results on the vibrations of the elastic structures composed of resonators and finite phononic crystals (PnCs) called meta-atoms. The normal modes associated to these structures get trapped inside the resonators and decay evanescently through the PnCs when the normal-mode frequencies of the resonator fall within the bandgap of the PnCs. The trapped vibrations, called atomic elastic meta-orbitals, mimic the quantum-mechanical p_z orbitals. By coupling two or more meta-atoms, artificial elastic molecules are built and the molecular elastic meta-orbitals emerge. Applications to aromatic and linear molecules are presented. Topological states, appearing in artificial elastic polymers, also emerge in the coupled-resonator elastic structures.

This talk is part of the Isaac Newton Institute Seminar Series series.

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