Irreversibility from a Reversible Equation

Details Irreversibility from a Reversible Equation Irreversibility from a Reversible Equation

1998-09-15

arxiv.org/abs/cond-mat/9809208v3

Physics

Condensed Matter

8 pages, LaTeX

Scientific paper

After a discussion on the state of local equilibrium with temperature inhomogeneity, comparing mixture state reprsentation in statistical mechanics and pure state representation in thermo field dynamics, a simple model is solved to show that a reversible equation of motion with the initial condition having inhomogeneous temperature can lead to irreversible, viz. diffusive, behaviour. Yet, the solution is time symmetric exhibiting diffusion both towards future and past.

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