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Spiral-based phononic plates: From wave beaming to topological insulators
André Foehr, Osama R. Bilal, Sebastian D. Huber +1
Phononic crystals and metamaterials take advantage of pre-designed geometrical structures to sculpt elastic waves, controlling their dispersion using different mechanisms. These me…
Exact solution of a two-species quantum dimer model for pseudogap metals
Johannes Feldmeier, Sebastian Huber, Matthias Punk
We present an exact ground state solution of a quantum dimer model introduced in Ref.[1], which features ordinary bosonic spin-singlet dimers as well as fermionic dimers that can b…
Electron spectral functions in a quantum dimer model for topological metals
Sebastian Huber, Johannes Feldmeier, Matthias Punk
We study single electron spectral functions in a quantum dimer model introduced by Punk, Allais and Sachdev (Ref. [1]). The Hilbert space of this model is spanned by hard-core cove…
Observation of a phononic quadrupole topological insulator
Marc Serra-Garcia, Valerio Peri, Roman Süsstrunk +4
The modern theory of charge polarization in solids is based on a generalization of Berry's phase. Its possible quantization lies at the heart of our understanding of all systems wi…
Intrinsically polar elastic metamaterials
Osama R. Bilal, Roman Süsstrunk, Chiara Daraio +1
The ability to design and fabricate materials with tailored mechanical properties, combined with immunity to damage, is a frontier of materials engineering. For example, materials…
Atomically thin semiconductors as nonlinear mirrors
Sina Zeytinoglu, Charlaine Roth, Sebastian Huber +1
We show that a transition metal dichalcogenide monolayer with a radiatively broadened exciton resonance would exhibit perfect extinction of a transmitted field. This result holds f…