4 papers
Asymptotic Estimation for Eigenvalues in the Exponential Potential and for Zeros of with Respect to Order
Yuri Krynytskyi, Andrij Rovenchak
The paper presents the derivation of the asymptotic behavior of -zeros of the modified Bessel function of imaginary order . This derivation is based on the quas…
Geometry and speed of evolution for a spin-s system with long-range zz-type Ising interaction
Yu. S. Krynytskyi, A. R. Kuzmak
We study the evolution of a spin-s system described by the long-range zz-type Ising interaction. The Fubini-Study metric of the quantum state manifold defined by this evolution is…
Multipole expansions for time-dependent charge and current distributions in quasistatic approximation
Yuri Krynytskyi, Andrij Rovenchak
We propose a consistent approach to the definition of electric, magnetic, and toroidal multipole moments. Electric and magnetic fields are split into potential, vortex, and radiati…
Radiation of the electromagnetic field beyond the dipole approximation
Andrij Rovenchak, Yuri Krynytskyi
The expression for the intensity of the electromagnetic field radiation is derived in the approximation next to the dipole one. The presented approach is based on fundamental equat…