2 papers
cond-mat.str-el2025
Non-linear integral equations for the XXX spin-1/2 quantum chain with non-diagonal boundary fields
Holger Frahm, Andreas Klümper, Dennis Wagner +1
The XXX spin- Heisenberg chain with non-diagonal boundary fields represents a cornerstone model in the study of integrable systems with open boundaries. Despite its si…
cond-mat.stat-mech2024
Thermodynamics based on Neural Networks
D. Wagner, A. Klümper, J. Sirker
We present three different neural network algorithms to calculate thermodynamic properties as well as dynamic correlation functions at finite temperatures for quantum lattice model…