3 papers
quant-ph2026
Composite-Dimensional Topological Codes with Boundaries and Defects
Mohamad Mousa, Amit Jamadagni, Eugene Dumitrescu
We introduce new algorithms and provide example constructions of stabilizer models for the gapped boundaries, domain walls, and defects of Abelian composite-dimensional twiste…
math-ph2025
Quantum Phase diagrams and transitions for Chern topological insulators
Ralph M. Kaufmann, Mohamad Mousa, Birgit Wehefritz-Kaufmann
Topological invariants such as Chern classes are by now a standard way to classify topological phases. Introducing and varying parameters in such systems leads to phase diagrams, w…
cond-mat.str-el2025
Refined Phase Diagram for a Spin-1 System Exhibiting a Haldane Phase
Mohamad Mousa, Birgit Wehefritz-Kaufmann, Sabre Kais +2
We provide the phase diagram of a 2-parameter spin-1 chain that has a symmetry-protected topological (SPT) Haldane phase using computational algorithms along with tensor-network to…