Abstract
We point out that the nonlinear Schrodinger lattice with a saturable nonlinearity also admits staggered periodic aswell as localized pulse-like solutions. Further, the same model also admits solutions with a short period. We examine the stability of these solutions and find that the staggered as well as the short-period solutions are stable in most cases. We also show that the effective Peierls-Nabarro barrier for the pulse-like soliton solutions is zero.
Original language | English |
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Journal | Journal of Physics A: Mathematical and Theoretical |
Volume | 42 |
Issue number | 8 |
ISSN | 1751-8113 |
DOIs | |
Publication status | Published - 2009 |