Volume 82, Number 6, June 2008
|Number of page(s)||3|
|Section||Physics of Gases, Plasmas and Electric Discharges|
|Published online||04 June 2008|
Ratio of viscosity to entropy density in a strongly coupled one-component plasma
Max-Planck-Institut für extraterrestrische Physik - P.O. Box 1312, 85741 Garching, Germany, EU
Corresponding author: firstname.lastname@example.org
Accepted: 2 May 2008
String theoretical arguments led to the hypothesis that the ratio of viscosity to entropy of any physical system has a lower bound. Strongly coupled systems usually have a small viscosity compared to weakly coupled plasmas in which the viscosity is proportional to the mean free path. In the case of a one-component plasma the viscosity as a function of the coupling strength shows a minimum. Here we show that the ratio of viscosity to entropy of a strongly coupled one-component plasma is always above the lower bound predicted by string theory.
PACS: 52.27.Gr – Strongly-coupled plasmas
© EPLA, 2008
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