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Charge on the quantum dot in the presence of tunneling current

Mariusz Krawiec·Karol I. Wysokinski
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Abstract

The calculation of the charge present in central region of the double barrier structure at non-equilibrium conditions is discussed. We propose here a simple method to calculate non equilibrium Green's functions which allows consistent calculations of retarded and distribution functions. To illustrate the approach we calculate the charge on the quantum dot coupled {\it via} tunnel barriers to two external leads having different chemical potentials $μ_L$ and $μ_R$. The obtained results have been compared with other approaches existing in the literature. They all agree in the equilibrium situation and the departures grow with increasing the difference $μ_L-μ_R$.

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Mariusz Krawiec, Karol I. Wysokinski. 2000-03-22. Charge on the quantum dot in the presence of tunneling current. https://doi.org/10.1016/s0038-1098(00)00146-0

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