TY  - EJOUR
AU  - Luu, Tom
AU  - Meissner, Ulf-G.
AU  - Razmadze, Lado
TI  - Localization of Electronic States in Hybrid Nano-Ribbons in the Non-Perturbative Regime
IS  - arXiv:2204.02742
M1  - FZJ-2022-04402
M1  - arXiv:2204.02742
PY  - 2022
N1  - 27 pages, 17 figures
AB  - 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.
LB  - PUB:(DE-HGF)25
UR  - https://juser.fz-juelich.de/record/911076
ER  -