Godby, R.W. orcid.org/0000-0002-1012-4176, Bokes, P. and Jung, J. (2006) Quantum conductance of homogeneous and inhomogeneous interacting electron systems. [Preprint]
Abstract
We obtain the conductance of a system of electrons connected to leads, within time-dependent density-functional theory, using a direct relation between the conductance and the density response function. Corrections to the non-interacting conductance appear as a consequence of the functional form of the exchange-correlation kernel at small frequencies and wavevectors. The simple adiabatic local-density approximation and non-local density-terms in the kernel both give rise to significant corrections in general. In the homogeneous electron gas, the former correction remains significant, and leads to a failure of linear-response theory for densities below a critical value.
Metadata
Item Type: | Preprint |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2006 The Authors. Paper from arXiv.org arXiv:cond-mat/0604317v1. For resolution of the here published results see Bokes, P., Jung, J. and Godby, R.W. (2007) Ab-initio formulation of the 4-point conductance of interacting electronic systems. Physical Review B, 76 (12). Art. No. 125433. (In this repository as http://eprints.whiterose.ac.uk/4032/) |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 08 Jun 2023 23:14 |
Last Modified: | 15 Mar 2025 00:15 |
Status: | Published |
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Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:200160 |