415 citations · 512 across the 7 of their papers we have counts for
7 papers
Making ab initio QED functional(s): Non-perturbative and photon-free effective frameworks for strong light-matter coupling
Christian Schäfer, Florian Buchholz, Markus Penz +2
Strong light-matter coupling provides a promising path for the control of quantum matter where the latter is routinely described from first-principles. However, combining the quant…
Many Electrons and the Photon Field -- The many-body structure of nonrelativistic quantum electrodynamics
Florian Buchholz
Recent experimental progress in the field of cavity quantum electrodynamics allows to study the regime of strong interaction between quantized light and complex matter systems. Due…
Light-matter hybrid-orbital-based first-principles methods: the influence of the polariton statistics
Florian Buchholz, Iris Theophilou, Klaas J. H. Giesbertz +2
A detailed understanding of strong matter-photon interactions requires first-principle methods that can solve the fundamental Pauli-Fierz Hamiltonian of non-relativistic quantum el…
Octopus, a computational framework for exploring light-driven phenomena and quantum dynamics in extended and finite systems
Nicolas Tancogne-Dejean, Micael J. T. Oliveira, Xavier Andrade +31
Over the last years extraordinary advances in experimental and theoretical tools have allowed us to monitor and control matter at short time and atomic scales with a high-degree of…
Reduced Density-Matrix Approach to Strong Matter-Photon Interaction
Florian Buchholz, Iris Theophilou, Soeren Ersbak Bang Nielsen +2
We present a first-principles approach to electronic many-body systems strongly coupled to cavity modes in terms of matter-photon one-body reduced density matrices. The theory is f…
Kinetic-Energy Density-Functional Theory on a Lattice
Iris Theophilou, Florian Buchholz, F. G. Eich +2
We present a kinetic-energy density-functional theory and the corresponding kinetic-energy Kohn-Sham (keKS) scheme on a lattice and show that by including more observables explicit…
No-flux boundaries stabilize scroll rings in excitable media with negative filament tension
Arash Azhand, Rico Buchholz, Florian Buchholz +2
Scroll rings in an unbounded excitable medium with negative line tension undergo an instability ending eventually in a "turbulent" state, known as scroll wave (Winfree) turbulence.…