Evolution of Floquet topological quantum states in driven semiconductors

Andreas Lubatsch and Regine Frank ()
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Andreas Lubatsch: Georg-Simon-Ohm University of Applied Sciences
Regine Frank: Bell Laboratories

The European Physical Journal B: Condensed Matter and Complex Systems, 2019, vol. 92, issue 9, 1-9

Abstract: Abstract Spatially uniform excitations can induce Floquet topological bandstructures within insulators which have equal characteristics to those of topological insulators. Going beyond we demonstrate in this article the evolution of Floquet topological quantum states for electromagnetically driven semiconductor bulk matter. We show the direct physical impact of the mathematical precision of the Floquet-Keldysh theory when we solve the driven system of a generalized Hubbard model with our framework of dynamical mean field theory (DMFT) in the non-equilibrium. We explain the physical consequences of the topological non-equilibrium effects in our results for correlated sysems with impact on optoelectronic applications. Graphical abstract

Date: 2019
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DOI: 10.1140/epjb/e2019-100087-0

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