 061 Giovanni Gallavotti
 Irreversibility time scale
(59K, LatexRevtex)
Jan 3, 06

Abstract ,
Paper (src),
View paper
(auto. generated ps),
Index
of related papers

Abstract. Entropy creation rate is introduced for a
system interacting with thermostats ({\it i.e.}, in the usual
language, for a system subject to internal conservative forces
interacting with ``external'' thermostats via conservative forces)
and a fluctuation theorem for it is proved. As an application a time scale
is introduced, to be interpreted as the time over which
irreversibility becomes manifest in a process leading from an initial
to a final stationary state of a mechanical system in a general
nonequilibrium context. The time scale is evaluated in a few examples,
including the classical JouleThompson process (gas expansion in a
vacuum).
 Files:
061.src(
061.comments ,
061.keywords ,
eqalignno.sty ,
irr.bbl ,
irr.tex ,
fig.ps )