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Theoretical Study of Nonequilibrium Electron Transport and Charge Distribution in a Three-Site Quantum Wire
2008
Japanese Journal of Applied Physics
We derive the nonequilibrium transport property formulas for a three-site quantum wire model using Keldysh formalism. Some rigorous formulas in the case of noninteraction are provided for direct calculations. On the basis of the numerical calculations, we investigate the differential and total conductances, transport current, and on-site electronic charges of a wire in some special cases. For a uniform-ingredient wire, if the temperature T ¼ 0 K, it shows that, when site-site couplings in the
doi:10.1143/jjap.47.371
fatcat:6nlv76ahwveupkldvyov3ppugi