Variational approximations using Gaussian ansatz, false instability, and its remedy in nonlinear Schrödinger lattices
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/aae4be
Abstract: We study the fundamental lattice solitons of the discrete nonlinear Schr\"{o}dinger (DNLS) equation and their stability via a variational method. Using a Gaussian ansatz and comparing the results with numerical computations, we report a novel… read more here.
Keywords: gaussian ansatz; using gaussian; nonlinear schr; schr dinger ... See more keywords