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|Type:||Artigo de periódico|
|Title:||On Pade approximants to virial series|
|Abstract:||Pade approximants have long been used to predict virial series coefficients and to provide equations of state for low and high density materials. However, some justified criticism has appeared about this procedure. Although we agree to impose several restrictions on the use of Pade approximants, we indicate that the Pade approximant is still an excellent way to predict the first unknown virial series coefficients. As an example, we report a calculation of the B(11)=128.6 and B(12)=155 virial coefficients of the three dimensional hard sphere model that are in excellent agreement with the two most recent estimates. We also consider that the commonly used method to choose among Pade approximants is not completely reliable for this specific application and suggest an alternative new method. (C) 2008 American Institute of Physics.|
|Editor:||Amer Inst Physics|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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