Ahmed, Waqas Waseem; Herrero, Ramon; Botey, Muriel M.; Hayran, Zeki; Kurt, Hamza; Staliünas, Kestutis
(American Physical Society, 2018-03-15)
We propose an approach based on a local Hilbert transform to design non-Hermitian potentials generating arbitrary vector fields of directionality, p→(r→), with desired shapes and topologies. We derive a local Hilbert ...