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

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...

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Published inThe 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
LanguageEnglish
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
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Summary: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 -symmetric potentials. In particular it is found that there is a clear distinction in the dynamics between the topologically different cases known from the stationary eigenstates. Graphical abstract
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ISSN:1434-6060
1434-6079
DOI:10.1140/epjd/e2018-90502-3