421 citations · 1.5k across the 60 of their papers we have counts for
61 papers
Parametrization of the Coulomb interaction matrix with point-group symmetry
Coraline Letouzé, Guillaume Radtke, Benjamin Lenz +1
Coulomb integrals, i.e., matrix elements of bare or screened Coulomb interaction between one-electron orbitals, are fundamental objects in many approaches developed to tackle the c…
Fermi resonance in the Raman spectrum of graphene
Dipankar Kalita, Michele Amato, Alexandre Artaud +6
We report the observation of an intense anomalous peak at 1608 cm in the Raman spectrum of graphene associated to the presence of chromium nanoparticles in contact with grap…
Noncommutative geometry, the Lorentzian Standard Model and its B-L extension
Fabien Besnard, Christian Brouder
We explore the 1-loop renormalization group flow of two models coming from a generalization of the Connes-Lott version of Noncommutative Geometry in Lorentzian signature: the Nonco…
X-ray Magnetic and Natural Circular Dichroism from first principles: Calculation of K- and L1-edge spectra
N. Bouldi, N. J. Vollmers, C. G. Delpy-Laplanche +8
An efficient first principles approach to calculate X-ray magnetic circular dichroism (XMCD) and X-ray natural circular dichroism (XNCD) is developed and applied in the near edge r…
Properties of field functionals and characterization of local functionals
Christian Brouder, Nguyen Viet Dang, Camille Laurent-Gengoux +1
Functionals (i.e. functions of functions) are widely used in quantum field theory and solid-state physics. In this paper, functionals are given a rigorous mathematical framework an…
Space and time dimensions of algebras with applications to Lorentzian noncommutative geometry and quantum electrodynamics
Nadir Bizi, Christian Brouder, Fabien Besnard
An analogy with real Clifford algebras on even-dimensional vector spaces suggests to assign a couple of space and time dimensions modulo 8 to any algebra (represented over a comple…