P S ] 3 F eb 2 01 1 PT-Symmetric Oligomers : Analytical Solutions , Linear Stability and Nonlinear Dynamics

In the present work we focus on the case of (few-site) configurations respecting the PT-symmetry. We examine the case of such " oligomers " with not only 2-sites, as in earlier works, but also the cases of 3-and 4-sites. While in the former case of recent experimental interest, the picture of existing stationary solutions and their stability is fairly… CONTINUE READING