128 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Slovak Academy of SciencesSK82 papers
- Institute of Physics of the Slovak Academy of SciencesSK60 papers
- Masaryk UniversityCZ16 papers
- Comenius University BratislavaSK13 papers
- Centre National de la Recherche ScientifiqueFR10 papers
- Université Paris-SudFR8 papers
- Institute of Inorganic Chemistry of the Slovak Academy of SciencesSK7 papers
- Slovak University of Technology in BratislavaSK6 papers
- Laboratoire de Physique Théorique et Modèles StatistiquesFR5 papers
- Czech Academy of Sciences, Institute of Physics of MaterialsCZ4 papers
- Institute of Electrical Engineering of the Slovak Academy of SciencesSK4 papers
- Laboratoire de Physique ThéoriqueFR4 papers
19 papers · 1 filter
Counterions between walls with surface charge modulations: Exact Poisson-Boltzmann solutions
Ladislav Šamaj
We study the thermal equilibrium of a classical system of identical point charges moving between two walls with parallel surfaces at a distance , charged symmetrically with posi…
1D fluids with repulsive nearest-neighbour interactions: Low-temperature anomalies
Igor Travěnec, Ladislav Šamaj
A limited number of 2D and 3D materials under a constant pressure contract in volume upon heating isobarically; this anomalous phenomenon is known as the negative thermal expansion…
Contact value theorem for electric double layers with modulated surface charge density
Ladislav Šamaj
The contact value theorem was originally derived for Coulomb fluids of mobile charged particles in thermal equilibrium, in the presence of interfaces carrying a {\em uniform} surfa…
Effective interaction between guest charges immersed in 2D jellium
Ladislav Šamaj
The model under study is an infinite 2D jellium of pointlike particles with elementary charge , interacting via the logarithmic potential and in thermal equilibrium at the inver…
Electric double layers with modulated surface charge density: Exact 2D results
Ladislav Šamaj
Electric double layers (EDL) with counterions only, say electrons with the elementary charge , in thermal equilibrium at the inverse temperature are considered. In particul…
Anisotropic deformation of the 6-state clock model: Tricritical-point classification
Maria Polackova, Andrej Gendiar
The two-dimensional -state clock models exhibit the Berezinskii-Kosterlitz-Thouless (BKT) transition for since they are a subset of the isotropic XY model. We examine t…
Ising ferromagnets and antiferromagnets in an imaginary magnetic field
Roman Krčmár, Andrej Gendiar, Ladislav Šamaj
We study classical Ising spin- models on the 2D square lattice with ferromagnetic or antiferromagnetic nearest-neighbor interactions, under the effect of a pure imagin…
Attraction of like-charged walls with counterions only: Exact results for the 2D cylinder geometry
Ladislav Šamaj
We study a 2D system of identical mobile particles on the surface of a cylinder of finite length and circumference , immersed in a medium of dielectric constant $\varepsilon…
Short-distance symmetry of pair correlations in two-dimensional jellium
Ladislav Šamaj
We consider the two-dimensional one-component plasma (jellium) of mobile pointlike particles with the same charge , interacting pairwisely by the logarithmic Coulomb potential a…
Fourth Moment of the Charge Density Induced Around A Guest Charge in Two-Dimensional Jellium
Ladislav Šamaj
The model under consideration is the classical two-dimensional one-component plasma (jellium) of pointlike particles with charge , interacting pairwisely via the logarithmic Cou…
Planar screening by charge polydisperse counterions
M. Trulsson, E. Trizac, L. Samaj
We study how a neutralising cloud of counterions screens the electric field of a uniformly charged planar membrane plate, when the counterions are characterised by a distribution o…
Original electric-vertex formulation of the symmetric eight-vertex model on the square lattice is fully non-universal
Roman Krčmár, Ladislav Šamaj
The partition function of the symmetric (zero electric field) eight-vertex model on a square lattice can be formulated either in the original "electric" vertex format or in an equi…
Critical properties of the eight-vertex model in a field
Roman Krčmár, Ladislav Šamaj
The general eight-vertex model on a square lattice is studied numerically by using the Corner Transfer Matrix Renormalization Group method. The method is tested on the symmetric (z…
Counter-ions between or at asymmetrically charged walls: 2D free-fermion point
L. Samaj, E. Trizac
This work contributes to the problem of determining effective interaction between asymmetrically (likely or oppositely) charged objects whose total charge is neutralized by mobile…
Mean-field universality class induced by weak hyperbolic curvatures
Andrej Gendiar, Michal Daniska, Roman Krcmar +1
Order-disorder phase transition of the ferromagnetic Ising model is investigated on a series of two-dimensional lattices that have negative Gaussian curvatures. Exceptional lattice…
Phase space reduction of the one-dimensional Fokker-Planck (Kramers) equation
Pavol Kalinay, Jerome K. Percus
A pointlike particle of finite mass m, moving in a one-dimensional viscous environment and biased by a spatially dependent force, is considered. We present a rigorous mapping of th…
Correlations and sum rules in a half-space for a quantum two-dimensional one-component plasma
B. Jancovici, L. Samaj
This paper is the continuation of a previous one [L. {Š}amaj and B. Jancovici, 2007 {\it J. Stat. Mech.} P02002]; for a nearly classical quantum fluid in a half-space bounded by a…
Wigner-Kirkwood expansion for semi-infinite quantum fluids
L. Samaj, B. Jancovici
For infinite (bulk) quantum fluids of particles interacting via pairwise sufficiently smooth interactions, the Wigner-Kirkwood formalism provides a semiclassical expansion of the B…
Thermodynamic Properties of the Two-Dimensional Coulomb Gas in the Low-Density Limit
P. Kalinay, L. Samaj
The model under consideration is the two-dimensional Coulomb gas of charged hard disks with diameter . For the case of pointlike charges , the system is stable agai…