26 citations · 47 across the 5 of their papers we have counts for
5 papers
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-…
Equilibrium non-linear phononics by electric field fluctuations of terahertz cavities
Emil Viñas Boström, Marios H. Michael, Christian Eckhardt +1
Selective excitation of vibrational modes using strong laser pulses has emerged as a powerful material engineering paradigm. However, to realize deterministic control over material…
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…
Cavity electrodynamics of van der Waals heterostructures
Gunda Kipp, Hope M Bretscher, Benedikt Schulte +21
Van der Waals (vdW) heterostructures host many-body quantum phenomena that can be tuned in situ using electrostatic gates. These gates are often microstructured graphite flakes tha…
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…