Two-dimensional few electron systems in high magnetic fields: Composite-fermion or rotating-electron-molecule approach?

Details Two-dimensional few electron systems in high magnetic fields: Composite-fermion or rotating-electron-molecule approach? Two-dimensional few electron systems in high magnetic fields: Composite-fermion or rotating-electron-molecule approach?

2002-02-05

arxiv.org/abs/cond-mat/0202062v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Latex/Revtex, 5 pages. For related papers, see http://www.prism.gatech.edu/~ph274cy

Scientific paper

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.

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