Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2005-07-19
Phys. Rev. Lett. 94, 244301 (2005)
Physics
Condensed Matter
Statistical Mechanics
4 pages, 3 figures
Scientific paper
10.1103/PhysRevLett.94.244301
The evolution of infinitesimal, localized perturbations is investigated in a one-dimensional diatomic gas of hard-point particles (HPG) and thereby connected to energy diffusion. As a result, a Levy walk description, which was so far invoked to explain anomalous heat conductivity in the context of non-interacting particles is here shown to extend to the general case of truly many-body systems. Our approach does not only provide a firm evidence that energy diffusion is anomalous in the HPG, but proves definitely superior to direct methods for estimating the divergence rate of heat conductivity which turns out to be $0.333\pm 0.004$, in perfect agreement with the dynamical renormalization--group prediction (1/3).
Cipriani Piero
Denisov Sergey
Politi Alberto
No associations
LandOfFree
From anomalous energy diffusion to Levy walks and heat conductivity in one-dimensional systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with From anomalous energy diffusion to Levy walks and heat conductivity in one-dimensional systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and From anomalous energy diffusion to Levy walks and heat conductivity in one-dimensional systems will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-287212