49 citations · 120 across the 3 of their papers we have counts for
3 papers
Effective Ising model for correlated systems with charge ordering
E. A. Stepanov, A. Huber, A. I. Lichtenstein +1
Collective electronic fluctuations in correlated materials give rise to various important phenomena, such as existence of the charge ordering, superconductivity, Mott insulating an…
From local to non-local correlations: the Dual Boson perspective
E. A. Stepanov, A. Huber, E. G. C. P. van Loon +2
Extended dynamical mean-field theory (EDMFT) is insufficient to describe non-local effects in strongly correlated systems, since corrections to the mean-field solution are generall…
Probing of valley polarization in graphene via optical second-harmonic generation
T. O. Wehling, A. Huber, A. I. Lichtenstein +1
Valley polarization in graphene breaks inversion symmetry and therefore leads to second-harmonic generation. We present a complete theory of this effect within a single-particle ap…