We report our transport studies in quasi-one-dimensional (1D) conductors---helical polyacetylene fibers doped with iodine---and the data analysis for other polymer single fibers and tubes. We found that at 30 K<T<300 K, the conductance and the current-voltage characteristics follow the power law G(T)∝T^α with α~2.2--7.2 and I(V)∝V^β with β~2--5.7. Both $G(T)$ and$I(V)$ show the features characteristic of 1D systems such as a Luttinger liquid or Wigner crystal. The relationship between our results and theories for tunneling in 1D systems is discussed.
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Алешин et al. (2004) studied this question.
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