title: Fluctuation formula in the Nosé-Hoover thermostated Lorentz gas.
abstract: In this paper we examine numerically the Gallavotti-Cohen fluctuation formula for phase-space contraction rate and entropy production rate fluctuations in the Nosé-Hoover thermostated periodic Lorentz gas. Our results indicate that while the phase-space contraction rate fluctuations violate the fluctuation formula near equilibrium states, the entropy production rate fluctuations obey this formula near and far from equilibrium states as well.
authors.affiliation: Institute for Theoretical Physics, Eötvös University, Pf. 32, H-1518 Budapest, Hungary.
authors.forename: M
authors.initials: M
authors.lastname: Dolowschiák
authors.forename: Z
authors.initials: Z
authors.lastname: Kovács