Ensemble Equivalence for Counterion Condensation on a Two Dimensional Charged Disc

Autor: Varghese, Anoop, Vemparala, Satyavani, Rajesh, R.
Rok vydání: 2011
Předmět:
Zdroj: Phys. Rev. E 85, 011119 (2012)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevE.85.011119
Popis: We study the counterion condensation on a two dimensional charged disc in the limit of infinite dilution, and compare the energy-temperature relation obtained from the canonical free energy and microcanonical entropy. The microcanonical entropy is piecewise linear in energy, and is shown to be concave for all energies. As a result, even though the interactions are long-ranged, the energy-temperature relation and hence the counterion condensation transition points are identical in both the ensembles.
Comment: 4 pages, 2 figures
Databáze: arXiv