4 papers
Generalized characteristics of the homogenous magneto hydrodynamical equations
Imre Ferenc Barna
With the help of the generalized characteristics(GC) of the first order partial differential equations(PDE) we calculate the differential equation system of characteristics of the…
Searching for dark matter with helium atom
Imre Ferenc Barna
With the help of the boost operator we can model the interaction between a weakly interacting particle(WIMP) of dark matter(DAMA) and an atomic nuclei. Via this "kick" we calculate…
Angular distribution in two-photon double ionization of helium by intense attosecond soft X-ray pulses
I. F. Barna, J. Wang, J. Burgdoerfer
We investigate two-photon double ionization of helium by intense () ultrashort ( as) soft X-ray pulses (E = 91.6 eV). The time-dependent two-electron S…
Spiral modes in the diffusion of a granular particle on a vibrating surface
R. Klages, I. F. Barna, L. Matyas
We consider a particle that is subject to a constant force and scatters inelastically on a vibrating periodically corrugated floor. At small friction and small radius of the circul…