3 papers
math.RT2025
Generalised Burnside and Dixon algorithms for irreducible projective representations
Attila Szabó
Based on the recently proposed character theory of projective representations of finite groups proposed, we generalise several algorithms for computing character tables and matrice…
cond-mat.str-el2024
Rainbow chains and numerical renormalisation group for accurate chiral conformal spectra
Attila Szabó
Based on the relationship between reduced and thermal density matrices in conformal field theory (CFT), we show that the entanglement spectrum of a conformal critical chain with ex…
cond-mat.str-el2023
Noncoplanar and chiral spin states on the way towards Néel ordering in fullerene Heisenberg models
Attila Szabó, Sylvain Capponi, Fabien Alet
Using high-accuracy variational Monte Carlo based on group-convolutional neural networks (GCNNs), we obtain the symmetry-resolved low-energy spectrum of the spin-1/2 Heisenberg mod…