Identifying Klein tunneling signatures in bearded Su-Schrieffer-Heeger lattices from bent flat bands
Y Betancur-Ocampo, G Monsivais - Physical Review B, 2024 - APS
Su-Schrieffer-Heeger (SSH) lattices have helped to understand key concepts of topological
insulators. In this paper, we study the transmission properties of pn junctions of bearded …
insulators. In this paper, we study the transmission properties of pn junctions of bearded …
Infinite bound states and 1/n energy spectrum induced by a coulomb-like potential of type iii in a flat band system
YC Zhang - Physica Scripta, 2022 - iopscience.iop.org
In this work, we investigate the bound states in a one-dimensional spin-1 flat band system
with a Coulomb-like potential of type III, which has a unique non-vanishing matrix element in …
with a Coulomb-like potential of type III, which has a unique non-vanishing matrix element in …
Bound states in the continuum (BIC) protected by self-sustained potential barriers in a flat band system
YC Zhang - Scientific Reports, 2022 - nature.com
In this work, we investigate the bound states in the continuum (BIC) of a one-dimensional
spin-1 flat band system. It is found that, when the potential is sufficiently strong, there exists …
spin-1 flat band system. It is found that, when the potential is sufficiently strong, there exists …
Critical regions in a one-dimensional flat band lattice with a quasi-periodic potential
YC Zhang - Scientific Reports, 2024 - nature.com
In our previous work, the concept of critical region in a generalized Aubry–André model
(Ganeshan–Pixley–Das Sarma's model) has been established. In this work, we find that the …
(Ganeshan–Pixley–Das Sarma's model) has been established. In this work, we find that the …
Identifying Klein tunneling signatures in bearded SSH lattices from bent flat bands
Y Betancur-Ocampo, G Monsivais - arXiv preprint arXiv:2312.10621, 2023 - arxiv.org
Su-Schrieffer-Heeger (SSH) lattices have helped to understand key concepts of topological
insulators. In this paper, we study the transmission properties of $ pn $ junctions of bearded …
insulators. In this paper, we study the transmission properties of $ pn $ junctions of bearded …
Wave function collapses and 1/n energy spectrum induced by a Coulomb potential in a one-dimensional flat band system
YC Zhang - Chinese Physics B, 2022 - iopscience.iop.org
We investigate the bound state problem in a one-dimensional flat band system with a
Coulomb potential. It is found that, in the presence of a Coulomb potential of type I (with …
Coulomb potential. It is found that, in the presence of a Coulomb potential of type I (with …
Bound states and point interactions of the one-dimensional pseudospin-one Hamiltonian
AV Zolotaryuk, Y Zolotaryuk… - Journal of Physics A …, 2023 - iopscience.iop.org
The spectrum of a one-dimensional pseudospin-one Hamiltonian with a three-component
potential is studied for two configurations:(i) all the potential components are constants over …
potential is studied for two configurations:(i) all the potential components are constants over …
Critical region in a one-dimensional flat band lattice with a quasi-periodic potential
Y Zhang - 2024 - researchsquare.com
In our previous work, the concept of critical region in a generalized Aubry-Andr'{e} model
(Ganeshan-Pixley-Das Sarma's model) has been set up. In this work, we find that the critical …
(Ganeshan-Pixley-Das Sarma's model) has been set up. In this work, we find that the critical …
Proposed realization of critical regions in a one-dimensional flat band lattice with a quasi-periodic potential
YC Zhang - arXiv preprint arXiv:2205.12337, 2022 - arxiv.org
In the previous work, the concept of critical region in a generalized Aubry-Andr\'{e} model
(Ganeshan-Pixley-Das Sarma's model) has been set up. In this work we propose that the …
(Ganeshan-Pixley-Das Sarma's model) has been set up. In this work we propose that the …