220 citations · 1.4k across the 28 of their papers we have counts for
6 papers · 1 filter
Two-temperature scales in the triangular-lattice Heisenberg antiferromagnet
Lei Chen, Dai-Wei Qu, Han Li +5
The anomalous thermodynamic properties of the paradigmatic frustrated spin-1/2 triangular lattice Heisenberg antiferromagnet (TLH) has remained an open topic of research over decad…
Hundness versus Mottness in a three-band Hubbard-Hund model: On the origin of strong correlations in Hund metals
Katharina M. Stadler, Gabriel Kotliar, Andreas Weichselbaum +1
Hund metals are multi-orbital systems with moderate Coulomb interaction, , and sizeable Hund's rule coupling, , that aligns the spins in different orbitals. They show stron…
Derivation of exact flow equations from the self-consistent parquet relations
Fabian B. Kugler, Jan von Delft
We exploit the parquet formalism to derive exact flow equations for the two-particle-reducible four-point vertices, the self-energy, and typical response functions, circumventing t…
Functional Renormalization Group treatment of the 0.7-analog in quantum point contacts
Lukas Weidinger, Christian Schmauder, Dennis H. Schimmel +1
We use a recently developed fRG method (extendend Coupled-Ladder Approximation) to study the 0.7-analog in quantum point contacts, arising at the crossing of the 1st and 2nd band a…
Two-color Fermi liquid theory for transport through a multilevel Kondo impurity
D. B. Karki, Christophe Mora, Jan von Delft +1
We consider a quantum dot with orbital levels occupied by two electrons connected to two electric terminals. The generic model is given by a multi-level Anderson…
Flavor fluctuations in 3-level quantum dots: Generic SU(3)-Kondo fixed point in equilibrium and non-Kondo fixed points in nonequilibrium
Carsten J. Lindner, Fabian B. Kugler, Herbert Schoeller +1
We study a -level quantum dot in the singly occupied cotunneling regime coupled via a generic tunneling matrix to several multi-channel leads in equilibrium or nonequilibrium. W…