2021/07/31 by R. Fantoni, M. A. G. Maestre, A. Santos · 1 citation
Physics and Astronomy · #cond-mat.stat-mech #cond-mat.soft #physics.chem-ph
paper · pdf · doi:10.1088/1742-5468/ac2897
published as J. Stat. Mech., 103210 (2021) · 23 one-column pages, 6 figures; v2: minor changes
arxiv created 2021/10/28 · arxiv updated 2021/10/29
The equilibrium properties of a Janus fluid made of two-face particles confined to a one-dimensional channel are revisited. The exact Gibbs free energy for a finite number of particles N is exactly derived for both quenched and annealed realizations. It is proved that the results for both classes of systems tend in the thermodynamic limit (N→∞) to a common expression recently derived (Maestre M A G and Santos A 2020 J Stat Mech 063217). The theoretical finite-size results are particularized to the Kern--Frenkel model and confirmed by Monte Carlo simulations for quenched and (both biased and unbiased) annealed systems.