1 citations · 1 across the 1 of their papers we have counts for
8 papers
Topological States of Matter in Frustrated Quantum Magnetism
Alexander Wietek
Frustrated quantum magnets may exhibit fascinating collective phenomena. The main goal of this dissertation is to provide conclusive evidence for the emergence of novel phases of m…
Mott insulating states with competing orders in the triangular lattice Hubbard model
Alexander Wietek, Riccardo Rossi, Fedor Šimkovic +6
The physics of the triangular lattice Hubbard model exhibits a rich phenomenology, ranging from a metal-insulator transition, intriguing thermodynamic behavior, and a putative spin…
Loop-gas description of the localized-magnon states on the kagome lattice with open boundary conditions
Andreas Honecker, Johannes Richter, Jürgen Schnack +1
The high-field regime of the spin-s XXZ antiferromagnet on the kagome lattice gives rise to macroscopically degenerate ground states thanks to a completely flat lowest single-magno…
SU Chiral Spin Liquid on the Square Lattice: a View from Symmetric PEPS
Ji-Yao Chen, Sylvain Capponi, Alexander Wietek +3
Quantum spin liquids can be faithfully represented and efficiently characterized within the framework of Projected Entangled Pair States (PEPS). Guided by extensive exact diagonali…
Valence bond solid and possible deconfined quantum criticality in an extended kagome lattice Heisenberg antiferromagnet
Alexander Wietek, Andreas M. Läuchli
We present numerical evidence for the emergence of an extended valence bond solid (VBS) phase at in the kagome Heisenberg antiferromagnet with ferromagnetic further-n…
Thermodynamic properties of the Shastry-Sutherland model throughout the dimer-product phase
Alexander Wietek, Philippe Corboz, Stefan Wessel +3
The thermodynamic properties of the Shastry-Sutherland model have posed one of the longest-lasting conundrums in frustrated quantum magnetism. Over a wide range on both sides of th…