INVESTIGADORES
RAMIREZ PASTOR Antonio Jose
artículos
Título:
Exclusion statistics and thermodynamics of a straight k-mers lattice-gas: Analytical approximation and Monte Carlo simulations
Autor/es:
JULIÁN J. RICCARDO; EUGENIO VOGEL; P. M. PASINETTI; J. L. RICCARDO; A. J. RAMIREZ-PASTOR
Revista:
PHYSICA A - STATISTICAL AND THEORETICAL PHYSICS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2023 vol. 618
ISSN:
0378-4371
Resumen:
Thermodynamics of straight k-mers gas on the square lattice is addressed from itsrelation to state exclusion statistics through a new analytical approximation alongwith a detailed MC analysis. Multiple state exclusion arising as consequence of thespatial correlation between particle states is described through exclusion spectrumfunctions and related to the thermodynamic potentials. An effective lattice analyticalapproximation is introduced through configurational mapping and applied to dimers(k = 2) and trimers (k = 3). Simple closed analytical forms for the coverage dependenceof multiple state exclusion probabilities and chemical potential are obtained. Remarkableagreement with fast relaxation MC simulations carried out in this work is already foundfor the lowest degree of approximation.
