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Abstract
We study the behavior of the energy fluctuations in the stationary state of a uniformly heated granular gas. The equation for the one-time two-particle correlation function is derived and the hydrodynamic eigenvalues are identified. Explicit predictions are subsequently determined for energy fluctuations. The results explain Monte Carlo numerical data reported in previous studies [Eur. Phys. J. B 51, 377 (2006)].
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Acknowledgements
It is a pleasure to dedicate this work to Jean-Jacques Weis. We thank Paolo Visco for useful discussions, and for providing us with the Monte Carlo data of . We would like to thank the Agence Nationale de la Recherche for financial support (grant ANR-05-JCJC-44482). M.I.G.S. and P.M. acknowledge financial support from Becas de la Fundación La Caixa y el Gobierno Francés. E.T. acknowledges the support of Institut Universitaire de France.