Anomalous heat conduction in a one-dimensional ideal gas.
We provide firm convincing evidence that the energy transport in a one-dimensional gas of elastically colliding free particles of unequal masses is anomalous, i.e., the Fourier law does not hold. Our conclusions are confirmed by a theoretical and numerical analysis based on a Green-Kubo-type approach specialized to momentum-conserving lattices.
Casati
Giulio
G
International Center for the Study of Dynamical Systems, Università degli Studi dell'Insubria, Como, Italy.
Prosen
Tomaz
T