Proposed fitting function for the critical Casimir force on 4He film below the λ point

Shyamal Biswas

Physica A: Statistical Mechanics and its Applications, 2010, vol. 389, issue 13, 2541-2544

Abstract: We have extended the mean field calculations [9] of Zandi et al. (2007) and have obtained an approximate mathematical expression for the Casimir scaling function ϑ(y), which if extrapolated to the domain π2≥−y≥0, becomes surprisingly similar to that obtained experimentally [16] by Ganshin et al. (2006). The extrapolated ϑ(y) can be regarded as a proposed fitting function, that appears to agree better with the experiments [16] in D=3, than the exact mean field results of Zandi et al. (2007) [9].

Keywords: Superfluid transition and critical phenomena of 4He; Superfluid phase of 4He; 4He films; Critical point phenomena (search for similar items in EconPapers)
Date: 2010
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:389:y:2010:i:13:p:2541-2544

DOI: 10.1016/j.physa.2010.03.018

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