Effective charge-spin models for quantum dots
نویسندگان
چکیده
منابع مشابه
Effective charge-spin models for quantum dots.
It is shown that at low densities, quantum dots with few electrons may be mapped onto effective charge-spin models for the low-energy eigenstates. This is justified by defining a lattice model based on a many-electron pocketstate basis in which electrons are localised near their classical ground-state positions. The equivalence to a single-band Hubbard model is then established leading to a cha...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 1996
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.54.4936