Modified non-linear Schrödinger models, $\mathcal{C}{\mathcal{P}}_s{\mathcal{T}}_d$ symmetry, dark solitons and infinite towers of anomalous charges

H. Blas, M. Cerna Maguiña, L. F. dos Santos

Some modified (defocusing) non-linear Schrödinger models (MNLS) possess infinite towers of anomalous conservation laws with asymptotically conserved charges. The so-called anomalie…