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cond-mat.other2014
Coupled-mode theory for binary optical lattices
Lasha Tkeshelashvili
The coupled-mode theory is developed for description of the nonlinear wave dynamics in binary optical lattices. The obtained equations of motion accurately describe nonlinear wave…
cond-mat.other2014
Non-Markovian dynamics of the sine-Gordon solitons
Lasha Tkeshelashvili
The sine-Gordon equation exhibits a gap in its linear spectrum. That gives rise to memory, or non-Markovian, effects in the soliton formation processes. The generalized variational…