Critical fluctuations of a confined binary mixture

Exploiting the mapping between a binary mixture and the Ising model we have analyzed the critical fluctuations by means of the density-matrix renormalization group technique. The calculations have been carried out for a two-dimensional Ising strip subject to equal strong surface fields. It was found...

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Bibliographic Details
Published inarXiv.org
Main Authors Zubaszewska, Małgorzata, Gendiar, Andrej, Masłowski, Tomasz
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 10.02.2015
Subjects
Binary mixtures
Composition
Critical temperature
Force displays
Ising model
Mapping
Variation
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Summary:Exploiting the mapping between a binary mixture and the Ising model we have analyzed the critical fluctuations by means of the density-matrix renormalization group technique. The calculations have been carried out for a two-dimensional Ising strip subject to equal strong surface fields. It was found that the critical Casimir force displays significantly different behavior on opposite sides of the capillary condensation line, especially below the critical temperature. It can be concluded that in a real binary mixtures the most attractive force appears at temperatures near T_C and at reservoir compositions slightly away from the critical composition.
ISSN:2331-8422