3 papers
math.AP2026
Finite-energy weak solutions and relaxation for a compressible kinetic--fluid system with locally averaged Brinkman force
Young-Pil Choi, Roman Shvydkoy
We study a kinetic--fluid system in which a Vlasov or Vlasov--Fokker--Planck equation is coupled to the compressible Navier--Stokes equations with density-dependent viscosities thr…
physics.atom-ph2024
Measurement of ionization delays in atomic REMPI using photoelectron vortices
D. Köhnke, T. Bayer, M. Wollenhaupt
We study time-delays in atomic multiphoton ionization (MPI) using the phase-sensitive detection of photoelectron vortices. Photoelectron vortices are created by MPI with counter-ro…
physics.atom-ph2024
Shaped free electron vortices
D. Köhnke, T. Bayer, M. Wollenhaupt
Since their first theoretical proposal [Ngoko Djiokap et al., Phys. Rev. Lett. 115, 113004 (2015)] and experimental demonstration [Pengel et al., Phys. Rev. Lett. 118, 053003 (2017…