188 citations · 710 across the 14 of their papers we have counts for
8 papers · 1 filter
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…
Dual gauge field theory of quantum liquid crystals in three dimensions
Aron J. Beekman, Jaakko Nissinen, Kai Wu +1
The dislocation-mediated quantum melting of solids into quantum liquid crystals is extended from two to three spatial dimensions, using a generalization of boson-vortex or Abelian-…
Dual gauge field theory of quantum liquid crystals in two dimensions
Aron J. Beekman, Jaakko Nissinen, Kai Wu +5
We present a self-contained review of the theory of dislocation-mediated quantum melting at zero temperature in two spatial dimensions. The theory describes the liquid-crystalline…
Theory of magnon-skyrmion scattering in chiral magnets
Junichi Iwasaki, Aron J. Beekman, Naoto Nagaosa
We study theoretically the dynamics of magnons in the presence of a single skyrmion in chiral magnets featuring Dzyaloshinskii-Moriya interaction. We show by micromagnetic simulati…
Deconfining the rotational Goldstone mode: the superconducting nematic liquid crystal in 2+1D
Aron J. Beekman, Kai Wu, Vladimir Cvetkovic +1
The Goldstone theorem states that there should be a massless mode for each spontaneously broken symmetry generator. There is no such rotational mode in crystals, however supercondu…
Type-II Bose-Mott insulators
A. J. Beekman, J. Zaanen
The Mott insulating state formed from bosons is ubiquitous in solid He-4, cold atom systems, Josephson junction networks and perhaps underdoped high-Tc superconductors. We predict…