920 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- National Academy of Sciences of UkraineUA354 papers
- Lviv UniversityUA86 papers
- Coventry UniversityGB63 papers
- Lviv Polytechnic National UniversityUA61 papers
- Johannes Kepler University of LinzAT57 papers
- Centre National de la Recherche ScientifiqueFR55 papers
- Otto-von-Guericke-Universität MagdeburgDE42 papers
- University of Pavol Jozef ŠafárikSK27 papers
- Université de LorraineFR26 papers
- Georgetown UniversityUS21 papers
- Max Planck Institute for the Physics of Complex SystemsDE20 papers
- Institute of Physical ChemistryPL16 papers
32 papers · 1 filter
Features of description of composite system's motion in twist-deformed space-time
Kh. P. Gnatenko
Composite system made of particles is considered in twist-deformed space-time. It is shown that in the space the motion of the center-of-mass of the system depends on the relat…
Cluster expansion for the description of condensed state: crystalline cell approach
G. S. Bokun, M. F. Holovko
A well-known cluster expansion, which leads to virial expansion for the free energy of low density systems, is modified in such a way that it becomes applicable to the description…
Harmonic oscillator chain in noncommutative phase space with rotational symmetry
Kh. P. Gnatenko
We consider a quantum space with rotationally invariant noncommutative algebra of coordinates and momenta. The algebra contains tensors of noncommutativity constructed involving ad…
Parameters of noncommutativity in Lie-algebraic noncommutative space
Kh. P. Gnatenko
We find condition on the parameters of noncommutativity on which a list of important results can be obtained in a space with Lie-algebraic noncommutativity. Namely, we show that th…
Time reversal and rotational symmetries in noncommutative phase space
Kh. P. Gnatenko, M. I. Samar, V. M. Tkachuk
Time reversal symmetry is studied in a space with noncommutativity of coordinates and noncommutativity of momenta of canonical type. The circular motion is examined as an apparent…
Universal features of complex -block copolymers
V. Blavatska, K. Haydukivska
We study the conformational properties of complex polymer macromolecules, consisting in general of subsequently connected chains (blocks) of different lengths and distinct chem…
The spin- Heisenberg ferromagnet on the pyrochlore lattice: A Green's function study
T. Hutak, P. Müller, J. Richter +2
We consider the pyrochlore-lattice quantum Heisenberg ferromagnet and discuss the properties of this spin model at arbitrary temperatures. To this end, we use the Green's function…
Deformation effects in glycinium phosphite ferroelectric
I. R. Zachek, R. R. Levitskii, A. S. Vdovych
To study the effects appearing under mechanical stresses, we have used the model of glycinium phosphite ferroelectric, modified by taking into account the piezoelectric coupling of…
Interpreting pulse-shape effects in pump-probe spectroscopies
A. M. Shvaika, O. P. Matveev, T. P. Devereaux +1
The effect of the pulse-shape on pump-probe spectroscopies is examined for the simplest model of noninteracting fermions on an infinite-dimensional hypercubic lattice. The probe-mo…
Phase behaviour in ionic solutions: restricted primitive model of ionic liquid in explicit neutral solvent
O. V. Patsahan, T. M. Patsahan
We study fluid-fluid equilibrium in the simplest model of ionic solutions where the solvent is explicitly included, i.e., a binary mixture consisting of a restricted primitive mode…
X-Ray Photoemission Spectroscopy in the Falicov-Kimball model
Nandan Pakhira, A. M. Shvaika, J. K. Freericks
We calculate the finite temperature X-ray photoemission spectroscopy for the Falicov-Kimball model using a Weiner-Hopf sum equation approach. In the metallic state, the core-hole s…
System of interacting harmonic oscillators in rotationally invariant noncommutative phase space
Kh. P. Gnatenko
Rotationally invariant space with noncommutativity of coordinates and noncommutativity of momenta of canonical type is considered. A system of interacting harmonic oscillators…
Stroboscopic Tests for Thermalization of Electrons in Pump/Probe Experiments
O. P. Matveev, A. M. Shvaika, T. P. Devereaux +1
One of the goals of pump/probe spectroscopies is to determine how electrons relax after they have been driven out of equilibrium. It is challenging to determine how close electrons…
Correlation functions for a spin- Ising-XYZ diamond chain: Further evidence for quasi-phases and pseudo-transitions
I. M. Carvalho, J. Torrico, S. M. de Souza +2
One-dimensional systems with short-range interactions cannot exhibit a long-range order at nonzero temperature. However, there are some particular one-dimensional models, such as t…
Self-equilibration theorem in quantum-point contacts of interacting electrons: time-dependent quantum fluctuations of tunnel transport beyond the Levitov-Lesovik scattering approach
Gleb A. Skorobagatko
Equilibration to the steady state for a wide class of Luttinger liquid ballistic weakly linked tunnel contacts is extensively studied. Quantum fluctuations of tunnel current are co…
Rotationally invariant noncommutative phase space of canonical type with recovered weak equivalence principle
Kh. P. Gnatenko
We study influence of noncommutativity of coordinates and noncommutativity of momenta on the motion of a particle (macroscopic body) in uniform and non-uniform gravitational fields…
Data Mining in Scientometrics: usage analysis for academic publications
Olesya Mryglod, Yurij Holovatch, Ralph Kenna
We perform a statistical analysis of scientific-publication data with a goal to provide quantitative analysis of scientific process. Such an investigation belongs to the newly esta…
Ising versus Potts criticality in a low-temperature magnetothermodynamics of a frustrated spin-1/2 Heisenberg triangular bilayer
Jozef Strecka, Katarina Karlova, Vasyl Baliha +1
Low-temperature magnetization curves and thermodynamics of a frustrated spin-1/2 Heisenberg triangular bilayer with the antiferromagnetic intradimer interaction and either ferromag…
Anomalous zero-temperature magnetopolaronic blockade of resonant electron tunneling in Majorana-resonant-level single-electron transistor
G. A. Skorobagatko
The magnetopolaronic generalization of a Majorana-resonant-level (MRL) model is considered for a single-level vibrating quantum dot coupled to two half-infinite Tomonaga-Lu…
Nonlocal correlations in the optical conductivity spectra
D. A. Dobushovskyi, A. M. Shvaika
Optical conductivity spectra are studied for the Falicov-Kimball model with correlated hopping on the Bethe lattice. An expression for the current-current correlation function is d…
Spatiotemporal pattern formation in a three-variable CO oxidation reaction model
I. S. Bzovska, I. M. Mryglod
The spatiotemporal pattern formation is studied in the catalytic carbon monoxide oxidation reaction that takes into account the diffusion processes over the Pt(110) surface, which…
Bose-Einstein condensation and/or modulation of "displacements" in the two-state Bose-Hubbard model
I. V. Stasyuk, O. V. Velychko
Instabilities resulting in Bose-Einstein condensation and/or modulation of "displacements" in a system of quantum particles described by a two-state Bose-Hubbard model (with an all…
Vapour-liquid critical parameters of a : primitive model of ionic fluids confined in disordered porous media
Oksana Patsahan, Taras Patsahan, Myroslav Holovko
We study the vapour-liquid critical parameters of an ionic fluid confined in a disordered porous medium by using the theory which combines the collective variables approach with an…
Classical phase transitions in a one-dimensional short-range spin model induced by entropy depletion or complex fields
Petro Sarkanych, Yurij Holovatch, Ralph Kenna
Ising's solution of a classical spin model famously demonstrated the absence of a positive-temperature phase transition in one-dimensional equilibrium systems with short-range inte…