Vibraton
Vibraton is a hypothetical quasiparticle representing a quantized vibrational excitation in crystalline lattices, proposed as an extension of the phonon concept to capture high-frequency, strongly nonlinear lattice dynamics. In models where lattice units include nonlinear resonators or engineered metamaterial elements, vibratons arise as collective excitations that carry energy and momentum without a fixed particle counterpart.
Unlike phonons, which are well-established in harmonic or weakly anharmonic lattices, vibratons are predicted to appear
Experimental evidence for vibratons remains indirect. Some inelastic scattering and spectroscopic data in highly engineered nanostructures
Possible implications include new channels for thermal transport, especially at nanoscale where nonlinearities dominate, and the
See also: phonon, quasiparticle, lattice dynamics, metamaterial, nonlinear phononics.