Improved first-principles calculation of the third virial coefficient of helium
نویسندگان
چکیده
منابع مشابه
First-Principles Calculation of the Third Virial Coefficient of Helium
Knowledge of the pair and three-body potential-energy surfaces of helium is now sufficient to allow calculation of the third density virial coefficient, C(T), with significantly smaller uncertainty than that of existing experimental data. In this work, we employ the best available pair and three-body potentials for helium and calculate C(T) with path-integral Monte Carlo (PIMC) calculations sup...
متن کاملImproved First-Principles Calculation of the Third Virial Coefficient of Helium
We employ state-of-the-art pair and three-body potentials with path-integral Monte Carlo (PIMC) methods to calculate the third density virial coefficient C(T) for helium. The uncertainties are much smaller than those of the best experimental results, and approximately one-fourth the uncertainty of our previous work. We have extended our results in temperature down to 2.6 K, incorporating the ef...
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ژورنال
عنوان ژورنال: Journal of Research of the National Institute of Standards and Technology
سال: 2011
ISSN: 1044-677X
DOI: 10.6028/jres.116.016