Abstract
We find an improved estimate of the radius of analyticity of the pressure of the hard-sphere gas in d dimensions. The estimates are determined by the volume of multidimensional regions that can be numerically computed. For d=2, for instance, our estimate is about 40% larger than the classical one.
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Fernández, R., Procacci, A. & Scoppola, B. The Analyticity Region of the Hard Sphere Gas. Improved Bounds. J Stat Phys 128, 1139–1143 (2007). https://doi.org/10.1007/s10955-007-9352-7
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DOI: https://doi.org/10.1007/s10955-007-9352-7