Nonequilibrium Transport and Population Inversion in Double Quantum Dot Systems
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Publication:3106660
DOI10.1142/S0217979297000745zbMATH Open1229.82141arXivcond-mat/9611199MaRDI QIDQ3106660
Author name not available (Why is that?)
Publication date: 29 December 2011
Published in: International Journal of Modern Physics B (Search for Journal in Brave)
Abstract: We present a microscopic theory for both equilibrium and nonequilibrium transport properties of coupled double quantum dots (DQD). A general formula for current tunneling through the DQD is derived by the nonequilibrium Green's function method. Using a Hartree-Fock approach, effects of multi-level coupling and nonequilibrium electron distributions in resonant tunneling are considered. We find that the peak in the resonant tunneling current through two symmetric dots will split only when the inter-dot coupling is stronger than dot-lead coupling. We predict that population inversion can be achieved in one dot in the nonequilibrium regime.
Full work available at URL: https://arxiv.org/abs/cond-mat/9611199
Many-body theory; quantum Hall effect (81V70) Transport processes in time-dependent statistical mechanics (82C70) Quantum dots, waveguides, ratchets, etc. (81Q37)
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