activity
20142021
most citedPerturbation of the ns energy levels of the hydrogen atom in rotationally invariant noncommutative space

12 citations · 33 across the 6 of their papers we have counts for

collaborators

6 papers

math-ph2021★ 5 cited

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…

quant-ph2018★ 3 cited

Derivation of the robustness from the concurrence

Yu. S. Krynytskyi, A. R. Kuzmak

Adding the maximally mixed state with some weight to the entanglement system leads to disentanglement of the latter. For each predefined entangled state there exists a minimal valu…

quant-ph2018★ 8 cited

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…

physics.class-ph2018★ 1 cited

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…

physics.class-ph2018★ 4 cited

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…

quant-ph2014★ 12 cited

Perturbation of the ns energy levels of the hydrogen atom in rotationally invariant noncommutative space

Kh. P. Gnatenko, Yu. S. Krynytskyi, V. M. Tkachuk

Noncommutative space which is rotationally invariant is considered. The hydrogen atom is studied in this space. We exactly find the leading term in the asymptotic expansion of the…