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Two-dimensional few electron systems in high magnetic fields: Composite-fermion or rotating-electron-molecule approach? | | Constantine Yannouleas
; Uzi Landman
; | | Date: |
5 Feb 2002 | | Subject: | Mesoscopic Systems and Quantum Hall Effect; Strongly Correlated Electrons; Atomic Physics | cond-mat.mes-hall cond-mat.str-el hep-th nucl-th physics.atom-ph | | Abstract: | A new class of analytic and parameter-free, strongly correlated wave functions of simple functional form is derived for few electrons in two-dimensional quantum dots under high magnetic fields. These wave functions are constructed through breaking and subsequent restoration of the circular symmetry, and they offer a natural alternative to the Laughlin and composite-fermion functions. Underlying our approach is a collectively-rotating-electron-molecule picture. The angular momenta allowed by molecular symmetry correspond to the filling-factors’ hierarchy of the fractional quantum Hall effect. | | Source: | arXiv, cond-mat/0202062 | | Services: | Forum | Review | PDF | Favorites | |
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