= Non-linear phononics
{wiki=Non-linear_phononics}
Non-linear phononics is a field of study within condensed matter physics that focuses on the interactions between phonons—quantized modes of lattice vibrations in a solid—and their non-linear dynamics. Unlike linear phononics, which typically deals with small perturbations and linear responses of phonons in a material, non-linear phononics explores situations where phonon interactions lead to complex behavior, including the generation of new phonon modes, frequency mixing, and the formation of solitons.
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