| We study hydrodynamic fluctuations in an ideal gas. Because one is interested in thermodynamic properties of small volume elements, Einstein's theory of equilibrium fluctuations in large systems is insufficient. A toy model of correlated fluctuations in neighboring small cells leads us to the distinction of biased and unbiased momentum densities. Hydrodynamic equations that satisfy the fluctuation-dissipation theorem can then be formulated in terms of these two different momentum densities or velocities.
for LaTeX users @article{HC\"Ottinger2006-97,
author = {H. C. \"Ottinger},
title = {Toy Model of Hydrodynamic Fluctuations},
journal = {Phys. Rev. Lett.},
volume = {97},
pages = {090601},
year = {2006}
}
\bibitem{HC\"Ottinger2006-97} H.C. \"Ottinger,
Toy Model of Hydrodynamic Fluctuations,
Phys. Rev. Lett. {\bf 97} (2006) 090601 (4 pages).HC\"Ottinger2006-97
H.C. \"Ottinger
Toy Model of Hydrodynamic Fluctuations
Phys. Rev. Lett.,97,2006,090601 (4 pages) |
mk@mat.ethz.ch
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