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Wilkinson, Michael
(2001).
DOI: https://doi.org/10.1088/0953-8984/13/35/315
Abstract
This paper discusses a model for dissipation in electrical conductors, in which a time-dependent flux X(t) is threaded through a loop. The rate of dissipation is proportional to a constant D_E characterising the diffusion of single particle energies and Ohmic dissipation occurs when D_E is proportional to X^2. The diffusion constant D_E is investigated for a random matrix model and compared with the predictions of the Kubo-Greenwood formula. The results agree with the Kubo-Greenwwod formula in a physically significant regime where other models do not show agreement. Numerical experiments also identified another regime of this model which exhibits Ohmic dissipation, with a conductance which does not agree with the Kubo-Greenwood formula.
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About
- Item ORO ID
- 3498
- Item Type
- Journal Item
- ISSN
- 0953-8984
- Academic Unit or School
-
Faculty of Science, Technology, Engineering and Mathematics (STEM) > Mathematics and Statistics
Faculty of Science, Technology, Engineering and Mathematics (STEM) - Depositing User
- Michael Wilkinson