14 citations · 42 across the 7 of their papers we have counts for
8 papers
Control of the Néel vector in the quantum antiferromagnetic honeycomb lattice
Asliddin Khudoyberdiev, Dag-Björn Hering, Vanessa Sulaiman +1
The switching of antiferromagnetic order and its efficient control promise to enable ultrafast manipulation of data and large storage capacity. Recently, the time-dependent Schwing…
Quantum decay of magnons in the unfrustrated honeycomb Heisenberg model
Calvin Krämer, Dag-Björn Hering, Vanessa Sulaiman +3
We investigate the physical properties of elementary magnon excitations of the ordered antiferromagnetic Heisenberg model on the honeycomb lattice using quantum Monte Carlo (QMC) s…
Quantum effects in the magnon spectrum of 2D altermagnets via continuous similarity transformations
Raymond Wiedmann, Dag-Björn Hering, Vanessa Sulaiman +3
We investigate quantum effects on magnon excitations in a minimal spin-1/2 Heisenberg model for 2D altermagnets on the square lattice. A continuous similarity transformation is app…
Quantum melting of long-range ordered quantum antiferromagnets investigated by momentum-space continuous similarity transformations
Dag-Björn Hering, Matthias R. Walther, Kai P. Schmidt +1
We apply continuous similarity transformations (CSTs) to study the zero-temperature breakdown of long-range ordered quantum antiferromagnets. The CST flow equations are truncated i…
Quantitative description of long-range order in the anisotropic spin-1/2 Heisenberg antiferromagnet on the square lattice
Nils Caci, Dag-Björn Hering, Matthias R. Walther +3
The quantitative description of long-range order remains a challenge in quantum many-body physics. We provide zero-temperature results from two complementary methods for the ground…
Continuous similarity transformation for critical phenomena: easy-axis antiferromagnetic XXZ model
Matthias R. Walther, Dag-Björn Hering, Götz S. Uhrig +1
We apply continuous similarity transformations (CSTs) to the easy-axis antiferromagnetic XXZ-model on the square lattice. The CST flow equations are truncated in momentum space by…
Dynamic mean-field theory for dense spin systems at infinite temperature
Timo Gräßer, Philip Bleicker, Dag-Björn Hering +2
A dynamic mean-field theory for spin ensembles (spinDMFT) at infinite temperatures on arbitrary lattices is established. The approach is introduced for an isotropic Heisenberg mode…
Charge dynamics in magnetically disordered Mott insulators
Philip Bleicker, Dag-Björn Hering, Götz S. Uhrig
With the aid of both a semi-analytical and a numerically exact method we investigate the charge dynamics in the vicinity of half-filling in the one- and two-dimensional - mod…