2 papers
cond-mat.soft1999
Strongly localized anharmonic modes in perfect and imperfect crystals
V. Hizhnyakov, D. Nevedrov, E. Sigmund
Localized modes of large amplitudes in nonlinear lattices are considered. The applied method allows the reduction of nonlinear problem to a linear inverse problem of phonons scatte…
cond-mat1997
Nonlinear quantum dynamics of strong vibration: relaxation jumps and phonon bursts
V. Hizhnyakov, D. Nevedrov
We examine quantum decay of localized vibrations in anharmonic crystal lattice. The theory which describes two-phonon anharmonic relaxation can be applied both to local modes assoc…