Addition Spectrum Oscillations of Fractional Quantum Hall Dots

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dc.creatorGoldmann, E. D.
dc.creatorRenn, S. R.
dc.date1996-06-04
dc.date1997-07-14
dc.date.accessioned2026-07-07T09:02:28Z
dc.date.available2026-07-07T09:02:28Z
dc.descriptionQuantum dots in the fractional quantum Hall regime are studied using a Hartree formulation of composite fermion theory. Under appropriate conditions the chemical potential of the dots will oscillate periodically with B due to the transfer of composite fermions between quasi-Landau bands. This effect is analogous to the addition spectrum oscillations which occur in quantum dots in the integer quantum Hall regime. Period phi_0 oscillations are found in sharply confined dots with filling factors nu=2/5 and nu=2/3. Period 3*phi_0 oscillations are found in a parabolically confined nu=2/5 dot. More generally, we argue that the oscillation period of dots with band pinning should vary continuously with B whereas the period of dots without band pinning is phi_0. Finally, we discuss the possibility of detecting fractionally charged excitations using the observed period of addition spectrum oscillations.
dc.description4 pages, 4 figures. Numerical results have been expanded and the interpretation of results has been modified substantially
dc.identifierhttps://arxiv.org/abs/cond-mat/9606015
dc.identifierhttp://arxiv.org/abs/cond-mat/9606015
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/148641
dc.subjectMesoscale and Nanoscale Physics
dc.titleAddition Spectrum Oscillations of Fractional Quantum Hall Dots
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