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A 1D topological insulator for light
(2020)
A 1D photonic topological insulator is the photonic realization of a 1D topological insulator. We show how the calculation of a topological invariant, known as the Zak phase, is a useful tool to identify different topologies ...
Topological cutoff frequency in a slab waveguide: penetration length in topological insulator walls
(Physics Letters A, 2018)
Topological magnons in the antiferromagnetic checkerboard lattice
(Universidade Federal de Minas GeraisBrasilICX - DEPARTAMENTO DE FÍSICAUFMG, 2020)
Floquet topological transitions in a driven one-dimensional topological insulator
(American Physical Society, 2015-08)
The Su-Schrieffer-Heeger model of polyacetylene is a paradigmatic Hamiltonian exhibiting nontrivial edge states. By using Floquet theory we study how the spectrum of this one-dimensional topological insulator is affected ...
Multiterminal conductance of a floquet topological insulator
(2014)
We report on simulations of the dc conductance and quantum Hall response of a Floquet topological insulator using Floquet scattering theory. Our results reveal that laser-induced edge states lead to quantum Hall plateaus ...
Topological Kondo insulators in one dimension: Continuous Haldane-type ground-state evolution from the strongly interacting to the noninteracting limit
(American Physical Society, 2017-08)
We study, by means of the density-matrix renormalization group (DMRG) technique, the evolution of the ground state in a one-dimensional topological insulator, from the noninteracting to the strongly interacting limit, where ...
Metallic states in Topological Insulators with Magnetic Impurities.
(The American Physical SocietyMaryland, 2013-03)
Topological insulators are characterized by an insulating bulk, and an odd number of Dirac cones in the surface. Their existence are due a band inversion in the bulk phase created by a strong spin orbit coupling. Those ...
Topological Crystalline Insulator in a New Bi Semiconducting Phase
(2016)
Topological crystalline insulators are a type of topological insulators whose topological surface states are protected by a crystal symmetry, thus the surface gap can be tuned by applying strain or an electric field. In ...
Understanding topological insulators in real space
(MDPI, 2021)
A real space understanding of the Su-Schrieffer-Heeger model of polyacetylene is introduced thanks to delocalization indices defined within the quantum theory of atoms in molecules. This approach enables to go beyond the ...
Topological quantum phase transition in strongly correlated Kondo insulators in 1D
(Papers in Physics, 2016-09)
We investigate, by means of a eld-theory analysis combined with the density-matrix renormalization group (DMRG) method, a theoretical model for a strongly correlated quantum system in one dimension realizing a topologica ...