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Cubic NLSM The density of fermion satisfy n= Z d3k (2π)3 Z 0 −∞ dωA(ω,k) = Z d3k (2π)3 Z 0 −∞ dωsgn(ω+µ) (ω+µ) 1r B2 ( q k2x +k 2y −k Q)2 +k 2z 3 × " δ ω+µ+ r B2 ( q k2x +k 2y −k Q

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cond-mat.str-el 1

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2026 1

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CONDITIONAL 1

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Plasmon modes in quadratic and cubic nodal line semimetals

cond-mat.str-el · 2026-08-08 · conditional · novelty 6.0

In quadratic nodal line semimetals the long-wavelength plasmon frequency scales as n^{1/2}, while cubic nodal line semimetals show n^{2/3} at large doping and an RPA-derived n^{3/4} at small doping, with a common sqrt(2) anisotropy in the thin-ring limit.

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  • Plasmon modes in quadratic and cubic nodal line semimetals cond-mat.str-el · 2026-08-08 · conditional · none · ref 7

    In quadratic nodal line semimetals the long-wavelength plasmon frequency scales as n^{1/2}, while cubic nodal line semimetals show n^{2/3} at large doping and an RPA-derived n^{3/4} at small doping, with a common sqrt(2) anisotropy in the thin-ring limit.