3 papers
cond-mat.str-el2025
Topological phases of coupled Su-Schrieffer-Heeger wires
Anas Abdelwahab
The phase diagrams of an arbitrary number of diagonally and perpendicularly coupled Su-Schrieffer-Heeger wires are identified. The diagonally coupled wires exhibit r…
cond-mat.str-el2024
Persistent Haldane Phase in Carbon Tetris Chains
Anas Abdelwahab, Christoph Karrasch, Roman Rausch
We introduce the concept of tetris chains, which are linear arrays of 4-site molecules that differ by their intermolecular hopping geometry. We investigate the fermionic symmetry-p…
cond-mat.mes-hall2024
Strictly one dimensional behavior emerging from dispersive two dimensional system: implications on metallic nanowires on semiconducting substrates
Keshab Sony, Anas Abdelwahab
We studied single and two Su-Shreiffer-Heeger wires on a simple cubic semiconducting substrate. The wire-wire coupling is either perpendicular or diagonal hopping respecting the pa…