159 citations · 344 across the 8 of their papers we have counts for
4 papers · 1 filter
Spin dynamics of itinerant electrons: local magnetic moment formation and Berry phase
E. A. Stepanov, S. Brener, V. Harkov +2
The state-of-the-art theoretical description of magnetic materials relies on solving effective Heisenberg spin problems or their generalizations to relativistic or multi-spin-inter…
Impact of partially bosonized collective fluctuations on electronic degrees of freedom
V. Harkov, M. Vandelli, S. Brener +2
In this work we present a comprehensive analysis of collective electronic fluctuations and their effect on single-particle properties of the Hubbard model. Our approach is based on…
Non-equilibrium magnetic interactions in strongly correlated systems
Andrea Secchi, Sergei Brener, Alexander I. Lichtenstein +1
We formulate a low-energy theory for the magnetic interactions between electrons in the multi-band Hubbard model under non-equilibrium conditions determined by an external time-dep…
Cluster Dual Fermion Approach to Nonlocal Correlations
H. Hafermann, S. Brener, A. N. Rubtsov +2
We formulate a general cluster Dual Fermion Approach to nonlocal correlations in crystals. The scheme allows the treatment of long-range correlations beyond cluster DMFT and nonloc…