Phononic crystals are artificially engineered materials that consist of periodic structures designed to control and manipulate the propagation of phonons, which are quasiparticles representing the ...

Schematic of a portion of a 2D hierarchical phoxonic crystal with both large scale photonic lattice and a smaller scale phononic lattice inside a cavity resonator in the larger scale lattice. (Image: ...

Their proposed approach, outlined in a Nature Physics paper, entails the use of a carefully designed phononic bandgap metamaterial that could suppress the interactions of qubits with TLSs.