Solitons on a diatomic chain with alternating interactions
We search for pulse-like solitary waves on a one-dimensional lattice with two alternating masses and two alternating interactions. The equations of motion in Fourier space are treated by an iterative method which takes into account the discreteness effects. We present numerical results for the case that one of the interactions is linear (this is an excellent approximation in the case of a generalized Yomosa model for the energy transport in cc-helical proteins). Moreover we discuss the finite lifetime of the solitons due to the emission of optical phonons.
KeywordsSolitary Wave Optical Phonon Energy Transport Peptide Group Excellent Approximation
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