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
8 papers · 2 filters
Finite size induced phenomena in 2D classical spin models
O. Kapikranian, B. Berche, Yu. Holovatch
We make a short overview of the recent analytic and numerical studies of the classical two-dimensional XY and Heisenberg models at low temperatures. Special attention is being paid…
The 2D XY model on a finite lattice with structural disorder: quasi-long-range ordering under realistic conditions
Oleksandr Kapikranian, Bertrand Berche, Yurij Holovatch
We present an analytic approach to study concurrent influence of quenched non-magnetic site-dilution and finiteness of the lattice on the 2D XY model. Two significant deeply connec…
Perturbation expansion for the diluted two-dimensional XY model
Oleksandr Kapikranian, Bertrand Berche, Yurij Holovatch
We study the quasi-long-range ordered phase of a 2D XY model with quenched site-dilution using the spin-wave approximation and expansion in the parameter which characterizes the de…
A mesoscopic field theory of ionic systems versus a collective variable approach
O. Patsahan, I. Mryglod
We establish a link between the two functional approaches: a mesoscopic field theory developed recently by A.Ciach and G.Stell [A. Ciach and G. Stell, J. Mol. Liq. 87 (2000) 253] f…
Fluctuation-induced forces in periodic slabs: Breakdown of epsilon expansion at the bulk critical point and revised field theory
H. W. Diehl, Daniel Grüneberg, M. A. Shpot
Systems described by -component models in a slab geometry of finite thickness are considered at and above their bulk critical temperature $T_{c,…
On the spectral relations for multitime correlation functions
A. M. Shvaika
A general approach for derivation of the spectral relations for the multitime correlation functions is presented. A special attention is paid to the consideration of the non-ergodi…
Field-theoretic description of ionic crystallization in the restricted primitive model
A. Ciach, O. Patsahan
Effects of charge-density fluctuations on a phase behavior of the restricted primitive model (RPM) are studied within a field-theoretic formalism. We focus on a -line of continu…
Negative linear compressibility in confined dilatating systems
E. V. Vakarin, Yurko Duda, J. P. Badiali
The role of a matrix response to a fluid insertion is analyzed in terms of a perturbation theory and Monte Carlo simulations applied to a hard sphere fluid in a slit of fluctuating…