%0 Electronic Article
%A Luu, Tom
%A Meissner, Ulf-G.
%A Razmadze, Lado
%T Localization of Electronic States in Hybrid Nano-Ribbons in the Non-Perturbative Regime
%N arXiv:2204.02742
%M FZJ-2022-04402
%M arXiv:2204.02742
%D 2022
%Z 27 pages, 17 figures
%X We investigate the localization of low-energy single quasi-particle states in the 7/9-hybrid nanoribbon system in the presence of strong interactions and within a finite volume. We consider two scenarios, the first being the Hubbard model at half-filling and perform quantum Monte Carlo simulations for a range $U$ that includes the strongly correlated regime. In the second case we add a nearest-neighbor superconducting pairing $\Delta$ and take the symmetric line limit, where $\Delta$ is equal in magnitude to the hopping parameter $t$. In this limit the quasi-particle spectrum and wavefunctions can be directly solved for general onsite interaction $U$. In both cases we extract the site-dependent quasi-particle wavefunction densities and demonstrate that localization persists in these non-perturbative regimes under particular scenarios.
%F PUB:(DE-HGF)25
%9 Preprint
%U https://juser.fz-juelich.de/record/911076