188 citations · 710 across the 14 of their papers we have counts for
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Stability and Absence of a Tower of States in Ferrimagnets
Louk Rademaker, Aron Beekman, Jasper van Wezel
Antiferromagnets and ferromagnets are archetypes of the two distinct (type-A and type-B) ways of spontaneously breaking a continuous symmetry. Although type-B Nambu--Goldstone mode…
An Introduction to Spontaneous Symmetry Breaking
Aron J. Beekman, Louk Rademaker, Jasper van Wezel
Perhaps the most important aspect of symmetry in physics is the idea that a state does not need to have the same symmetries as the theory that describes it. This phenomenon is know…
Theory of generalized Josephson effects
Aron J. Beekman
The DC Josephson effect is the flow of supercurrent across a weak link between two superconductors with a different value of their order parameter, the phase. We generalize this no…
Charged and neutral fixed points in the O(N)+O(N)-model with Abelian gauge fields
Aron J. Beekman, Gergely Fejős
In the Abelian-Higgs model, or Ginzburg-Landau model of superconductivity, the existence of an infrared stable charged fixed point ensures that there is a parameter range where the…