26 citations · 47 across the 5 of their papers we have counts for
3 papers · 1 filter
Surface-mediated ultra-strong cavity coupling of two-dimensional itinerant electrons
Christian J. Eckhardt, Andrey Grankin, Dante M. Kennes +5
Engineering phases of matter in cavities requires effective light-matter coupling strengths that are on the same order of magnitude as the bare system energetics, coined the ultra-…
Floquet engineering nearly flat bands through quantum-geometric light-matter coupling with surface polaritons
Mikołaj Walicki, Christian J. Eckhardt, Michael A. Sentef
We investigate Floquet engineering in a sawtooth chain -- a minimal model hosting a nearly flat band endowed with nontrivial quantum geometry -- coupled to driven surface polariton…
Truncated-Unity Parquet Equations: Application to the Repulsive Hubbard Model
C. J. Eckhardt, G. A. H. Schober, J. Ehrlich +1
The parquet equations are a self-consistent set of equations for the effective two-particle vertex of an interacting many-fermion system. The application of these equations to bulk…