74 citations · 384 across the 15 of their papers we have counts for
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Taming pseudo-fermion functional renormalization for quantum spins: Finite-temperatures and the Popov-Fedotov trick
Benedikt Schneider, Dominik Kiese, Björn Sbierski
The pseudo-fermion representation for quantum spins introduces unphysical states in the Hilbert space which can be projected out using the Popov-Fedotov trick. However, sta…
Pinch-points to half-moons and up in the stars: the kagome skymap
Dominik Kiese, Francesco Ferrari, Nikita Astrakhantsev +9
Pinch point singularities, associated with flat band magnetic excitations, are tell-tale signatures of Coulomb spin liquids. While their properties in the presence of quantum fluct…
Functional renormalization of spinless triangular-lattice fermions: -patch vs. truncated-unity scheme
Nico Gneist, Dominik Kiese, Ravn Henkel +3
We study competing orders of spinless fermions in the triangular-lattice Hubbard model with nearest-neighbor interaction. We calculate the effective, momentum-resolved two-particle…
Benchmark Calculations of Multiloop Pseudofermion fRG
Marc K. Ritter, Dominik Kiese, Tobias Müller +4
The pseudofermion functional renormalization group (pffRG) is a computational method for determining zero-temperature phase diagrams of frustrated quantum magnets. In a recent meth…
Moments and multiplets in moiré materials: A pseudo-fermion functional renormalization group for spin-valley models
Lasse Gresista, Dominik Kiese, Simon Trebst
The observation of strongly-correlated states in moiré systems has renewed the conceptual interest in magnetic systems with higher SU(4) spin symmetry, e.g. to describe Mott insula…