141 citations · 785 across the 12 of their papers we have counts for
12 papers
Antiferromagnetic and d-wave pairing correlations in the strongly interacting two-dimensional Hubbard model from the functional renormalization group
Demetrio Vilardi, Ciro Taranto, Walter Metzner
Using the dynamical mean-field theory (DMFT) as a `booster-rocket', the functional renormalization group (fRG) can be upgraded from a weak-coupling method to a powerful computation…
Dynamically enhanced magnetic incommensurability: Effects of local dynamics on non-local spin-correlations in a strongly correlated metal
Demetrio Vilardi, Ciro Taranto, Walter Metzner
We compute the spin susceptibility of the two-dimensional Hubbard model away from half-filling, and analyze the impact of frequency dependent vertex corrections as obtained from th…
Non-separable frequency dependence of two-particle vertex in interacting fermion systems
Demetrio Vilardi, Ciro Taranto, Walter Metzner
We derive functional flow equations for the two-particle vertex and the self-energy in interacting fermion systems which capture the full frequency dependence of both quantities. T…
High-frequency asymptotics of the vertex function: diagrammatic parametrization and algorithmic implementation
N. Wentzell, G. Li, A. Tagliavini +5
Vertex functions are a crucial ingredient of several forefront many-body algorithms in condensed matter physics. However, the full treatment of their frequency and momentum depende…
Screened moments and absence of ferromagnetism in FeAl
Anna Galler, Ciro Taranto, Markus Wallerberger +5
While the stoichiometric intermetallic compound FeAl is found to be paramagnetic in experiment, standard band-theory approaches predict the material to be ferromagnetic. We show th…
Correlated starting points for the functional renormalization group
Nils Wentzell, Ciro Taranto, Andrey A. Katanin +2
We present a general frame to extend functional renormalization group (fRG) based computational schemes by using an exactly solvable interacting reference problem as starting point…
Electronics with correlated oxides: SrVO/SrTiO as a Mott transistor
Zhicheng Zhong, Markus Wallerberger, Jan M. Tomczak +5
We employ density functional theory plus dynamical mean field theory and identify the physical origin of why two layers of SrVO on a SrTiO substrate are insulating: the thi…
From infinite to two dimensions through the functional renormalization group
C. Taranto, S. Andergassen, J. Bauer +5
We present a novel scheme for an unbiased and non-perturbative treatment of strongly correlated fermions. The proposed approach combines two of the most successful many-body method…
Comparing +DMFT and LDA+DMFT for the testbed material SrVO
Ciro Taranto, Merzuk Kaltak, Nicolaus Parragh +4
We have implemented the +dynamical mean field theory (DMFT) approach in the Vienna ab initio simulation package. Employing the interaction values obtained from the locally unsc…
Effective Onsite Interaction for Dynamical Mean-Field Theory
Yusuke Nomura, Merzuk Kaltak, Kazuma Nakamura +7
A scheme to incorporate non-local polarizations into the dynamical mean-field theory (DMFT) and a tailor-made way to determine the effective interaction for the DMFT are systematic…
Signature of antiferromagnetic long-range order in the optical spectrum of strongly correlated electron systems
C. Taranto, G. Sangiovanni, K. Held +3
We show how the onset of a non-Slater antiferromagnetic ordering in a correlated material can be detected by optical spectroscopy. Using dynamical mean-field theory we identify two…
Hedin Equations, GW, GW+DMFT, and All That
K. Held, C. Taranto, G. Rohringer +1
Historically, the GW approach was put forward by Hedin as the simplest approximation to the so-called Hedin equations. In Section 2, we will derive these Hedin equations from a Fey…