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cond-mat.str-el2023★ 4 cited
The Fractal-Lattice Hubbard Model
Monica Conte, Vinicius Zampronio, Malte Röntgen +1
Here, we investigate the fractal-lattice Hubbard model using various numerical methods: exact diagonalization, the self-consistent diagonalization of a (mean-field) Hartree-Fock Ha…
cond-mat.str-el2022★ 9 cited
Spectral Properties of Two Coupled Fibonacci Chains
Anouar Moustaj, Malte Röntgen, Christian V. Morfonios +2
The Fibonacci chain, i.e., a tight-binding model where couplings and/or on-site potentials can take only two different values distributed according to the Fibonacci word, is a clas…