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Density wave propagation in a two-dimensional random dimer potential: From a single to a bipartite square lattice
(American Physical Society, 2020-01)
We study the propagation of a density perturbation in a weakly interacting boson gas confined on a lattice and in the presence of square dimerized impurities. Such a two-dimensional dual random dimer model (2D DRDM), ...
Adsorption of interacting monomers on spanning clusters of polyatomic species
(Elsevier Science, 2009-10-15)
The adsorption-desorption process occurring on heterogeneous surfaces is studied by considering a special case where a fractal is used as adsorbent. The fractal surface is the spanning cluster corresponding to the random ...
Quasi-chemical approach for adsorption of mixtures with non-additive lateral interactions
(Elsevier Science, 2017-01)
The statistical thermodynamics of binary mixtures with non-additive lateral interactions was developed on a generalization in the spirit of the lattice-gas model and the classical quasi-chemical approximation (QCA). The ...
A strongly attractive Fermi gas in an optical lattice
(ELSEVIER SCIENCE BV, 2010)
We study strongly attractive fermions in an optical lattice superimposed by a trapping potential. We calculate the densities of fermions and condensed bound molecules at zero temperature. There is a competition between ...
Configurational entropy of adsorbed particles on two-dimensional heterogeneous surfaces
(Elsevier Science, 2003-10-15)
The configurational entropy of repulsive interacting particles adsorbed on heterogeneous surfaces is studied by combining Monte Carlo simulation and thermodynamic integration method. The substrate is represented by a ...
A theoretical model to determine intercalation entropy and enthalpy: Application to lithium/graphite
(Elsevier Science Inc, 2016-04)
Intercalation compounds play a fundamental role to increase the capabilities of electrochemical cells to store energy. A new computational model is developed to calculate the intercalation entropy and enthalpy in electrochemical ...
One-dimensional diffusion: Validity of various expressions for jump rates
(American Physical Society, 2009-12)
The coverage dependence of the one-dimensional collective diffusion coefficient is analyzed by using the gradient expansion of the local density. The transition probabilities are written as an expansion of the probabilities ...
Additional constraints in adsorption-desorption kinetics
(American Physical Society, 2009-02)
In this work, the adsorption-desorption kinetic in the framework of the lattice gas model is analyzed. The transition probabilities are written as an expansion of the occupation configurations. Due to that, the detail ...