Interaction dependence of composite fermion effective masses
arXiv:cond-mat/9612019 · doi:10.1103/PhysRevB.55.15372
Abstract
We estimate the composite fermion effective mass for a general two particle potential r^{-α} using exact diagonalization for polarized electrons in the lowest Landau level on a sphere. Our data for the ground state energy at filling fraction ν=1/2 as well as estimates of the excitation gap at ν=1/3, 2/5 and 3/7 show that m_eff \sim α^{-1}.
4 pages, RevTeX, 5 figures
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