Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9789646 | Physica E: Low-dimensional Systems and Nanostructures | 2005 | 7 Pages |
Abstract
We consider chains consisting of several identical subsystems weakly coupled by various types of next-neighbor interactions. At both ends the chain is coupled to a respective heat bath with different temperature modeled by a Lindblad formalism. The temperature gradient introduced by this environment is then treated as an external perturbation. We propose a method to calculate the heat current and the local temperature profile of the resulting stationary state as well as the heat conductivity in such systems. This method is similar to Kubo techniques used, e.g., for electrical transport but extended here to the Liouville space.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Mathias Michel, Jochen Gemmer, Günter Mahler,