15 citations · 18 across the 5 of their papers we have counts for
6 papers · 1 filter
Approximating Hamiltonian for Hartree-Fock solutions for nonrelativistic atoms
N. Q. San, O. D. Skoromnik, V. V. Triguk +1
In our work we construct a Hamiltonian, whose eigenstates approximate the solutions of the self-consistent Hartree-Fock equations for nonrelativistic atoms and ions. Its eigenvalue…
Ground state of the gauge invariant Dicke model: condensation of the photons in non-classical states
N. Q. San, O. D. Skoromnik, A. P. Ulyanenkov +2
We investigate the ground state of two physically motivated modifications of the Dicke model. The first modification corresponds to particles whose phase space contains only two st…
Radiation induced interaction potential of two qubits strongly coupled with a quantized electromagnetic field
I. D. Feranchuk, N. Q. San, A. U. Leonau +1
We investigate the interaction of two two-level qubits with a single mode quantum field in a cavity without rotating wave approximation and considering that qubits can be located a…
Exact solution for the quantum Rabi model with the term
I. D. Feranchuk, N. Q. San, A. U. Leonau +1
Quantum Rabi model (QRM) is widely used for the analysis of the radiation-matter interaction at the fundamental level in cavity quantum electrodynamics. Typically the QRM Hamiltoni…
A generating integral for the matrix elements of the Coulomb Green's function with the Coulomb wave functions
K. Dzikowski, O. D. Skoromnik
We analytically evaluate the generating integral and integral moments $J_{nl}(β, r) =…
Analytic approximation for eigenvalues of a class of symmetric Hamiltonians
O. D. Skoromnik, I. D. Feranchuk
An analytical approximation for the eigenvalues of symmetric Hamiltonian , is developed via simple basis se…