38 citations · 59 across the 7 of their papers we have counts for
7 papers
Energy spectra of a spin- XY spin molecule interacting with a single mode field cavity: Numerical study
H. Tonchev, A. A. Donkov, H. Chamati
In a previous paper [J. Phys.: Conf. Ser. 682 (2016) 012032}, arXiv:1605.05593] we studied analytically the energy spectra of a finite-size spin XY chain (molecule) coup…
Interaction of a single mode field cavity with the 1D XY model: Energy spectrum
H. Tonchev, A. A. Donkov, H. Chamati
In this work we use the fundamental in quantum optics Jaynes-Cummings model to study the response of spin chain to a single mode of a laser light falling on one of the s…
Momentum and Mass Fluxes in a Gas Confined between Periodically Structured Surfaces at Different Temperatures
A. A. Donkov, Sudarshan Tiwari, Tengfei Liang +3
It is well known that in a gas-filled duct or channel along which a temperature gradient is applied, a thermal creep flow is created. Here we show that a mass and momentum flux can…
Electron-phonon interaction in the lamellar cobaltate NaCoO
A. Donkov, M. M. Korshunov, I. Eremin +4
We study theoretically and experimentally the dependence of the electron-phonon interaction in NaCoO on the sodium concentration . For the two oxygen phonon modes found…
Superconducting gap anisotropy within the framework of a simple exchange model for layered cuprates. The theory of HTSC
T. M. Mishonov, A. A. Donkov, R. K. Koleva +1
The oxygen O2p_sigma and copper Cu4s and Cu3d_x^2-y^2 orbitals are involved in a simple LCAO model for determination of the conduction band and the oxygen-oxygen hopping is conside…
The Exact Solutions of Some Multidimensional Generalizations of the Fokker-Planck Equation used by R. Friedrich and J. Peinke for the Description of a Turbulent Cascade
A. A. Donkov, A. D. Donkov, E. I. Grancharova
Some multidimensional generalizations of the Fokker-Planck equation used by R. Friedrich and J. Peinke for the description of a turbulent cascade as a stochastic process of Markovi…