113 citations · 476 across the 22 of their papers we have counts for
3 papers · 1 filter
Unifying Variational and Dynamical Quantum Embedding: From Ghost Gutzwiller Approximation to Dynamical Mean-Field Theory
Samuele Giuli, Tsung-Han Lee, Yong-Xin Yao +4
Dynamical and variational frameworks have long been viewed as distinct paradigms. In particular, in quantum embedding (QE) frameworks, dynamical mean-field theory (DMFT) captures n…
Abelian combinatorial gauge symmetry
Hongji Yu, Dmitry Green, Andrei E. Ruckenstein +1
Combinatorial gauge symmetry is a principle that allows us to construct lattice gauge theories with two key and distinguishing properties: a) only one- and two-body interactions ar…
The RKKY interactions and the Mott Transition
G. Moeller, V. Dobrosavljevic, A. E. Ruckenstein
A two-site cluster generalization of the Hubbard model in large dimensions is examined in order to study the role of short-range spin correlations near the metal-insulator transiti…