53 citations · 187 across the 12 of their papers we have counts for
12 papers
Unconventional criticality in -invariant loop-constrained Landau theory
Svitlana Kondovych, Asle Sudbø, Flavio S. Nogueira
We study an unconventional phase transition in ferroelectrics where the polarization field is constrained to be divergence-free, allowing only loop-like configurations. This local…
Quantum critical scaling of altermagnetism
Sondre Duna Lundemo, Flavio S. Nogueira, Asle Sudbø
The term altermagnetism has recently been introduced to describe the Néel order of a class of materials whose magnetic sublattices are neither related by translation nor inversion.…
Topology-driven deconfined quantum criticality in magnetic bilayers
Sondre Duna Lundemo, Flavio S. Nogueira, Asle Sudbø
Two-dimensional quantum antiferromagnets are believed to host phases of matter whose excitations are more fundamental than those of the ordered phases. When combining two such spin…
The "glass transition'' as a topological defect driven transition in a distribution of crystals and a prediction of a universal viscosity collapse
Z. Nussinov, N. B. Weingartner, F. S. Nogueira
Topological defects are typically quantified relative to ordered backgrounds. The importance of these defects to the understanding of physical phenomena including diverse equilibri…
First-order phase transition in easy-plane quantum antiferromagnets
S. Kragset, E. Smorgrav, J. Hove +2
Quantum phase transitions in Mott insulators do not fit easily into the Landau-Ginzburg-Wilson paradigm. A recently proposed alternative to it is the so called deconfined quantum c…
Compact U(1) gauge theories in 2+1 dimensions and the physics of low dimensional insulating materials
F. S. Nogueira, J. Smiseth, E. Smoergrav +1
Compact abelian gauge theories in dimensions arise often as an effective field-theoretic description of models of quantum insulators. In this paper we review some recent re…