3 papers
cond-mat.str-el2025
Quantum-critical and dynamical properties of the XXZ bilayer with long-range interactions
Patrick Adelhardt, Antonia Duft, Kai Phillip Schmidt
We study the XXZ square lattice bilayer model with antiferromagnetic non-frustrating long-range interactions that decay as a power law with the distance. Employing large-scale high…
cond-mat.str-el2024
Quantum Phase Diagram of the Bilayer Kitaev-Heisenberg Model
Elahe Samimi, Antonia Duft, Patrick Adelhardt +2
We study the ground-state phase diagram of the spin- Kitaev-Heisenberg model on the bilayer honeycomb lattice with large-scale tensor network calculations based on the infinit…
cond-mat.str-el2024
Order-by-disorder in the antiferromagnetic -- transverse-field Ising model on the ruby lattice
A. Duft, J. A. Koziol, P. Adelhardt +2
We investigate the quantum phase diagram of the -- antiferromagnetic transverse-field Ising model on the ruby lattice. In the low-field limit we derive an effective…