2 papers
cond-mat.mtrl-sci2025
Second-order microscopic nonlinear susceptibility in a centrosymmetric material: application to imaging valence electron motion
Chance Ornelas-Skarin, Tatiana Bezriadina, Matthias Fuchs +10
We report measurements of phase-matched nonlinear x-ray and optical sum-frequency generation from single-crystal silicon using sub-resonant 0.95 eV laser pulses and 9.5 keV hard x-…
cond-mat.stat-mech2024
Evaluation of the probability current in the stochastic path integral formalism
Valentin Wilhelm, Matthias Krüger, Matthias Fuchs +1
The probability current is a vital quantity in the Fokker-Planck description of stochastic processes. It characterizes non-equilibrium stationary states and appears in linear respo…