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- W4287702523 abstract "Quantum drift-diffusion equations are derived for a two-dimensional electron gas with spin-orbit interaction of Rashba type. The (formal) derivation turns out to be a non-standard application of the usual mathematical tools, such as Wigner transform, Moyal product expansion and Chapman-Enskog expansion. The main peculiarity consists in the fact that a non-vanishing current is already carried by the leading-order term in the Chapman-Enskog expansion. To our knowledge, this is the first example of quantum drift-diffusion equations involving the full spin vector. Indeed, previous models were either quantum bipolar (involving only the spin projection on a given axis) or full spin but semiclassical." @default.
- W4287702523 created "2022-07-26" @default.
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- W4287702523 date "2020-07-31" @default.
- W4287702523 modified "2023-10-01" @default.
- W4287702523 title "Quantum drift-diffusion equations for a two-dimensional electron gas with spin-orbit interaction" @default.
- W4287702523 doi "https://doi.org/10.48550/arxiv.2007.15947" @default.
- W4287702523 hasPublicationYear "2020" @default.
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