23 citations · 24 across the 5 of their papers we have counts for
5 papers
Hidden quantum correlations in the ground states of quasiclassical spin systems
Levente Rózsa, Dennis Wuhrer, Sebastián A. Díaz +2
Frustrated spin models may lead to the formation of both classical non-collinear spin structures and unique quantum phases including highly entangled quantum spin liquids. Here, we…
Dipole-dipole-interaction-induced entanglement between two-dimensional ferromagnets
Dennis Wuhrer, Niklas Rohling, Wolfgang Belzig
We investigate the viability of dipole-dipole interaction as a means of entangling two distant ferromagnets. To this end we make use of the Bogoliubov transformation as a symplecti…
Dynamical renormalization of the magnetic excitation spectrum via high-momentum nonlinear magnonics
Christoph Schoenfeld, Lennart Feuerer, Julian Bär +9
Controlling macroscopic properties of quantum materials requires the ability to induce and manipulate excited states. The set of collective excitations of a solid is encoded in its…
Magnon squeezing in conical spin spirals
Dennis Wuhrer, Levente Rózsa, Ulrich Nowak +1
We investigate squeezing of magnons in a conical spin spiral configuration. We find that while the energy of magnons propagating along the and the $-\boldsymbol{k}…
Theory of quantum entanglement and the structure of two-mode squeezed antiferromagnetic magnon vacuum
Dennis Wuhrer, Niklas Rohling, Wolfgang Belzig
Recent investigations of the quantum properties of an antiferromagnet in the spin wave approximation have identified the eigenstates as two-mode squeezed sublattice states. The uni…