126 citations · 327 across the 12 of their papers we have counts for
12 papers
Cavity-renormalized quantum criticality in a honeycomb bilayer antiferromagnet
Lukas Weber, Emil Viñas Boström, Martin Claassen +2
Strong light-matter interactions as realized in an optical cavity provide a tantalizing opportunity to control the properties of condensed matter systems. Inspired by experimental…
Thermal critical points from competing singlet formations in fully frustrated bilayer antiferromagnets
Lukas Weber, Antoine Yves Dimitri Fache, Frédéric Mila +1
We examine the ground-state phase diagram and thermal phase transitions in a plaquettized fully frustrated bilayer spin-1/2 Heisenberg model. Based on a combined analysis from sign…
Cluster quantum Monte Carlo study of two-dimensional weakly-coupled frustrated trimer antiferromagnets
Lukas Weber, Nils Caci, Stefan Wessel
We report results from spin trimer-based cluster quantum Monte Carlo simulations for the thermodynamic properties of two-dimensional frustrated quantum antiferromagnets that are co…
Quantum Monte Carlo simulations of highly frustrated magnets in a cluster basis: The two-dimensional Shastry-Sutherland model
Andreas Honecker, Lukas Weber, Philippe Corboz +2
Quantum Monte Carlo (QMC) simulations constitute nowadays one of the most powerful methods to study strongly correlated quantum systems, provided that no "sign problem" arises. How…
Hierarchical single-ion anisotropies in spin-1 Heisenberg antiferromagnets on the honeycomb lattice
Nils Caci, Lukas Weber, Stefan Wessel
We examine the thermal properties of the spin-1 Heisenberg antiferromagnet on the honeycomb lattice in the presence of an easy-plane single-ion anisotropy as well as the effects of…
Quantum Monte Carlo simulations in the trimer basis: first-order transitions and thermal critical points in frustrated trilayer magnets
L. Weber, A. Honecker, B. Normand +3
The phase diagrams of highly frustrated quantum spin systems can exhibit first-order quantum phase transitions and thermal critical points even in the absence of any long-ranged ma…