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Author Ueshima, Y. ♦ Nishihara, K. ♦ Barnett, D. M. ♦ Tajima, T. ♦ Furukawa, H.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION ♦ PLASMA SIMULATION ♦ LYAPUNOV METHOD ♦ STRONG-COUPLING MODEL ♦ TRANSPORT THEORY ♦ COUPLING CONSTANTS ♦ COULOMB FIELD ♦ PHASE SPACE ♦ TRAJECTORIES
Abstract Phase space Lyapunov expansion rates are measured for the first time for Coulomb many body systems with the use of a 3-{ital d} particle code. The time averaged Lyapunov exponents, {lambda}/{omega}{sub {ital p}}, are found to be proportional to {Gamma}{sup {minus}2/5} and the cubic root of the diffusion coefficient in the range of 1{lt}{Gamma}{lt}160, where {omega}{sub {ital p}} and {Gamma} are plasma frequency and ion coupling constant, respectively. A large jump of the averaged Lyapunov exponent is observed near {Gamma}{approximately}170, corresponding to the phase transition from liquid to solid. Instantaneous Lyapunov exponent has chaotic behavior and consists of three different spectra, flat, {ital f}{sup {minus}2} and {ital f}{sup {minus}1}. {copyright} {ital 1996 American Institute of Physics.}
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-05-01
Publisher Place United States
Volume Number 369
Issue Number 1
Technical Publication No. CONF-950476-


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