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cond-mat.mtrl-sci2008★ 8 cited
Dynamical structure factor of a nonlinear Klein-Gordon lattice
Laurent Proville
The quantum modes of a nonlinear Klein-Gordon lattice have been computed numerically [L. Proville, Phys. Rev. B 71, 104306 (2005)]. The on-site nonlinearity has been found to lead…
cond-mat.mtrl-sci2004
Pseudogap in the optical phonon spectra
L. Proville
The energy spectrum of the quantum Klein-Gordon lattice is computed numerically for different nonlinear contributions to the Hamiltonian. In agreement with the studies on the effec…