Wyniki wyszukiwania dla: MODEL POTENTIALS - MOST Wiedzy

Wyszukiwarka

Wyniki wyszukiwania dla: MODEL POTENTIALS

Najlepsze wyniki w katalogu: Potencjał Badawczy Pokaż wszystkie wyniki (26)

Wyniki wyszukiwania dla: MODEL POTENTIALS

Najlepsze wyniki w katalogu: Oferta Biznesowa Pokaż wszystkie wyniki (4)

Wyniki wyszukiwania dla: MODEL POTENTIALS

Pozostałe wyniki Pokaż wszystkie wyniki (148)

Wyniki wyszukiwania dla: MODEL POTENTIALS

  • JMATRIX - a package for relativistic J-matrix calculations in elastic scattering of electrons from model potentials

    Publikacja

    We present a software package JMATRIX, consisting of two computer codes written in FORTRAN 95 and parallelized with OpenMP, implementing the so-called J-matrix method, applied to elastic scattering of electrons on the radial potential, vanishing faster than Coulomb one. In the J-matrix method, physical scattering problem is replaced by using well-defined model, which is solved analytically. Presented software implements both non-relativistic...

    Pełny tekst do pobrania w portalu

  • Scale transformations in model exchange potentials in low energy electron-atom scattering

    Publikacja

    Model exchange potentials are particularly interesting to account for the indistinguishability between the projectile and target electrons in electron-atom scattering in vacuo and plasma environments. It is well known that their performance is pretty satisfactory in the high energies but also that discrepancies from the results obtained with exact exchange are found toward the zero energy limit. In this article, we examine how...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Zero-range potentials for Dirac particles: Bound-state problems

    Publikacja

    A model in which a massive Dirac particle in $\mathbb{R}^{3}$ is bound by $N\geqslant1$ spatially distributed zero-range potentials is presented. Interactions between the particle and the potentials are modeled by subjecting a particle's bispinor wave function to certain limiting conditions at the potential centers. Each of these conditions is parametrized by a $2\times2$ Hermitian matrix (or, equivalently, a real scalar and a...

    Pełny tekst do pobrania w portalu

  • Integrable zero-range potentials in a plane

    We examine general statements in the Wronskian representation of Darboux transformations for plane zero-range potentials. Such expressions naturally contain scattering problem solution. We also apply Abel theorem to Wronskians for differential equations and link it to chain equations for Darboux transforms to fix conditions for further development of the underlying distribution concept. Moutard transformations give a convenient...

    Pełny tekst do pobrania w portalu

  • Calculation of adiabatic potentials of Li2

    Prezentujemy adiabatyczne krzywe energii potencjalnej jonu cząsteczki litu. Krzywe zostały stabelowane według odległości międzyatomowej: od 2ao do 100ao. Nasze teoretyczne wyniki zostały porównane z wynikami innych autorów oraz z krzywymi potencjałów energii uzyskanymi w wyniku eksperymentów. Wszystkie obliczenia zostały wykonane przy użyciu programu MOLPRO.

    Pełny tekst do pobrania w portalu