Polarization of electrons in quantum dashes in magnetic field

We present a calculation of the quantum mechanical anticorrelation between two electrons each occupying an elongated quantum dot (“quantum dash”) and compare it to the corresponding classical result. A nonzero anticorrelation arises due to the repulsion between electrons. While the classical system...

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Bibliographic Details
Published in:Solid state communications 1994-07, Vol.91 (3), p.231-237
Main Authors: Kempa, K., Bakshi, P., Broido, D.A., Blagoev, K.B.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electron states and collective excitations in multilayers, quantum wells, mesoscopic, and nanoscale systems
Electron states and collective excitations in thin films, multilayers, quantum wells, mesoscopic and nanoscale systems
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Exact sciences and technology
Physics
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Summary:We present a calculation of the quantum mechanical anticorrelation between two electrons each occupying an elongated quantum dot (“quantum dash”) and compare it to the corresponding classical result. A nonzero anticorrelation arises due to the repulsion between electrons. While the classical system is characterized by a sharp transition in the anticorrelation function, quantum effects smear out this sharp onset. The presence of a strong external magnetic field enhances the particle localization, causing the quantum anticorrelation to approach the classical limit. Some practical applications are discussed.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(94)90230-5