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Fig. 5


Relative difference between the parameters νTA and νNTA corresponding to the cases with and without traditional approximation respectively, as a function of the ratio N/σ (horizontal axis) and 2Ω /σ (vertical axis) in logarithmic scales, and for various values of the ratios σ0/σ and γ = τ/k. From left to right, log (γ) = {−2,2}. From bottom to top, . The normalized relative difference between νTA and νNTA is given by ς = |νTAνNTA|/|νTA + νNTA|. Blue (red) areas designate regions where the traditional approximation is (not) appropriate. Parameters: θ = π/ 4 and α = π/ 2.

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