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Magneto-roton excitation of fractional quantum Hall effect: Comparison between theory and experiment | | Vito W. Scarola
; Kwon Park
; Jainendra K. Jain
; | | Date: |
29 Oct 1999 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | cond-mat.mes-hall | | Abstract: | A major obstacle toward a {em quantitative} verification, by comparison to experiment, of the theory of the excitations of the fractional quantum Hall effect has been the lack of a proper understanding of disorder. We circumvent this problem by studying the {em neutral} magneto-roton excitations, whose energy is expected to be largely insensitive to disorder. The calculated energies of the roton at 1/3, 2/5 and 3/7 fillings of the lowest Landau level are in good agreement with those measured experimentally. | | Source: | arXiv, cond-mat/9910491 | | Services: | Forum | Review | PDF | Favorites | |
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