- LandOfFree
- Scientists
- Physics
- Condensed Matter
- Disordered Systems and Neural Networks
Details
Role of pinning potentials in heat transport through disordered harmonic
chain
Role of pinning potentials in heat transport through disordered harmonic
chain
2008-06-29
-
arxiv.org/abs/0806.4693v2
Phys. Rev. E 78, 051112 (2008)
Physics
Condensed Matter
Disordered Systems and Neural Networks
5 pages, 2 figures, quantum case is added in modified version
Scientific paper
10.1103/PhysRevE.78.051112
The role of quadratic onsite pinning potentials on determining the size (N) dependence of the disorder averaged steady state heat current , in a isotopically disordered harmonic chain connected to stochastic heat baths, is investigated. For two models of heat baths, namely white noise baths and Rubin's model of baths, we find that the N dependence of is the same and depends on the number of pinning centers present in the chain. In the absence of pinning, ~ 1/N^{1/2} while in presence of one or two pins ~ 1/N^{3/2}. For a finite (n) number of pinning centers with 2 <= n << N, we provide heuristic arguments and numerical evidence to show that ~ 1/N^{n-1/2}. We discuss the relevance of our results in the context of recent experiments.
Affiliated with
Also associated with
No associations
LandOfFree
Say what you really think
Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.
Rating
Role of pinning potentials in heat transport through disordered harmonic
chain 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 Role of pinning potentials in heat transport through disordered harmonic
chain, we encourage you to share that experience with our LandOfFree.com community.
Your opinion is very important and Role of pinning potentials in heat transport through disordered harmonic
chain will most certainly appreciate the feedback.
Rate now
Profile ID: LFWR-SCP-O-258974
All data on this website is collected from public sources.
Our data reflects the most accurate information available at the time of publication.