Odessa University

Odessa, Ukraine

Odessa University

Odessa, Ukraine

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Khetselius O.Yu.,Odessa University | Florko T.A.,Odessa University | Nikola L.V.,Odessa University | Svinarenko A.A.,Odessa University | And 3 more authors.
AIP Conference Proceedings | Year: 2010

The hyperfine structure parameters, scalar-pseudoscalar interaction constants and parity non-conservation effect in some heavy atomic systems are calculated and treated within the combined QED perturbation theory formalism and relativistic nuclear mean-field theory. © 2010 American Institute of Physics.


The combined QED perturbation theory formalism and relativistic nuclear mean-field theory are applied to studying the fundamental parameters of the hyperfine, electroweak, parity non-conservation (PNC) interactions in heavy atoms, nuclei. There are firstly predicted the nuclear weak charged for some atoms. © 2010 American Institute of Physics.


Glushkov A.V.,Odessa University | Khetselius O.Yu.,Odessa University | Svinarenko A.A.,Odessa University | Prepelitsa G.P.,Odessa University | Shakhman A.N.,Odessa University
AIP Conference Proceedings | Year: 2010

Consistent, quantum approach to calculation of the electron-nuclear γ transition spectra (set of vibration-rotational satellites in molecule) of nucleus in molecule, which generalizes the well known Letokhov-Minogin model, is proposed and based on the Dunham model potential approximation and density functional approximation for potential curves of the diatomic molecules. Estimates are presented for vibration-rotation-nuclear transition probabilities in a case of the emission and absorption spectrum of nucleus 127I (E (0) γ= 203 keV) linked with molecule H 127I and the vibration-nuclear transition probabilities in a case of the emission and absorption spectrum of nucleus 191Ir (E(0) γ= 82 keV) in the IrO 4. © 2010 American Institute of Physics.


Svinarenko A.A.,Odessa University | Nikola L.V.,Odessa University | Prepelitsa G.P.,Odessa University | Tkach T.,Odessa University | Mischenko E.,Odessa University
AIP Conference Proceedings | Year: 2010

Relativistic method of calculating the characteristics of the Auger decay in the atomic spectra, based on the S-matrix Gell-Mann and Low formalism, is used for estimating the transition energies and autoionization probabilities in spectra of the Fe ion with one vacancy above the core 1s22s 22p63s23p6. © 2010 American Institute of Physics.


Glushkov A.V.,Odessa University | Khetselius O.Yu.,Odessa University | Svinarenko A.A.,Odessa University | Prepelitsa G.P.,Odessa University | Mischenko E.V.,Odessa University
AIP Conference Proceedings | Year: 2010

The combined theoretical approach to vibrational structure in photoelectron spectra (PES) of molecules, which is based on the density functional theory (DFT) and the Green's-functions (GF) approach, is used for quantitative treating the carbon oxide molecule PES. © 2010 American Institute of Physics.


Jacak W.,Wroclaw University of Technology | Krasnyj J.,Wroclaw University of Technology | Krasnyj J.,Odessa University | Jacak L.,Wroclaw University of Technology | Donderowicz W.,Wroclaw University of Technology
International Journal of Modern Physics B | Year: 2011

We analyze theoretically a hybridization type dressing of orbital (i.e., charge) and spin degrees of freedom of excitations captured in semiconductor quantum dot with band phonons and magnons (the latter for magnetic semiconductor surroundings), as a mechanism of dephasing of rapidly excited dot exciton state. Within the Green function approach we derive our previously formulated heuristic general rule for estimation of corresponding dephasing time-rate. The pure dephasing (off-diagonal decoherence) of quantum dot exciton resulting due to this dressing is studied, for both orbital and spin states of the exciton. A significant difference between phonon-induced (for charge) and magnon-assisted (for spin) quantum dot exciton dephasing is indicated as the result of the spin conservation, which leads to the disappearance of the exciton spin pure-dephasing at T = 0 (freezing out of spin dephasing), in contrary to the exciton charge dephasing caused by phonons, which maintains strong even at T = 0. © 2011 World Scientific Publishing Company.


Glushkov A.V.,Odessa University | Glushkov A.V.,Russian Academy of Sciences | Khetselius O.Yu.,Odessa University | Svinarenko A.A.,Odessa University | Lovett L.,UK National Academy of science
AIP Conference Proceedings | Year: 2010

A consistent energy approach to nuclei and atoms in a strong electromagnetic (laser) field is presented. The photon emission and absorption lines are described by the moments of different orders, which are calculated with the use of the Gell-Mann and Low S-matrix adiabatic formalism. In relativistic version the Gell-Mann and Low formulae expresses an imaginary part of the energy shift ImE through the scattering matrix, including interaction of quantum system as with laser field as with a field of photon vacuum. © 2010 American Institute of Physics.


Glushkov A.V.,Odessa University | Glushkov A.V.,Russian Academy of Sciences
AIP Conference Proceedings | Year: 2010

The consistent approach to the "atom, nucleus - realistic laser field" interaction is presented and based on the QED and Gell-Mann and Low S-matrix formalism. . The method is applied to studying the multi-photon resonance width and shift in the atom of H in a laser pulse. © 2010 American Institute of Physics.


Malinovskaya S.V.,Odessa University | Glushkov A.V.,Odessa University | Glushkov A.V.,Russian Academy of Sciences | Khetselius O.Y.,Odessa University | And 5 more authors.
International Journal of Quantum Chemistry | Year: 2011

A uniform quantum energy approach for studying spectra of the multicharged ions in a plasmas and the electron-ion collision cross sections is presented. The approach is based on formally exact QED theory by using the relativistic Dirac Hamiltonian for electron-nuclear and electron-electron potentials, the gauge invariant scheme of generation for the optimal one-quasiparticle representation and the Debye shielding model. The measured and calculated electron-collisional excitation cross sections for Ne-like barium ion for different values of the incident electron energy are presented and analyzed. © 2010 Wiley Periodicals, Inc.


Bulavin L.A.,Taras Shevchenko National University | Kulinskii V.L.,Odessa University | Malomuzh N.P.,Odessa University
Journal of Molecular Liquids | Year: 2011

The behavior of the diameter of the coexistence curve in terms of the entropy and the corresponding diameter are investigated. It is shown that the diameter of the coexistence curve in terms of the entropy is sensitive to the change in the character of the rotational motion of the molecule in liquid phase which is governed by the short range correlations. The model of the compressible effective volume is proposed to describe the phase coexistence both in terms of the density and the entropy. © 2011 Elsevier B.V.

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