Topological edge states in the Su-Schrieffer-Heeger model subject to balanced particle gain and loss

• Published in: The European physical journal. D, Atomic, molecular, and optical physics Vol. 72; no. 12; pp. 1 - 7
• Main Authors: Klett, Marcel, Cartarius, Holger, Dast, Dennis, Main, Jörg, Wunner, Günter
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2018; Springer Nature B.V
• Subjects: Applications of Nonlinear Dynamics and Chaos Theory; Atomic; Eigenvectors; Molecular; Optical and Plasma Physics; Physical Chemistry; Physics; Physics and Astronomy; Quantum Information Technology; Quantum Physics; Regular Article; Spectroscopy/Spectrometry; Spintronics; Atomic Physics

We investigate the Su-Schrieffer-Heeger model in presence of an injection and removal of particles, introduced via a master equation in Lindblad form. It is shown that the dynamics of the density matrix follows the predictions of calculations in which the gain and loss are modeled by complex PT -sym...