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- W2003179904 abstract "The electronic transport properties of single-walled nanotubes (SWNTs) are characterized by the critical exponent $ensuremath{Theta}$, describing the behavior of the single-particle spectral function near the Fermi energy as $ensuremath{rho}(ensuremath{omega})ensuremath{propto}{ensuremath{mid}ensuremath{omega}ensuremath{mid}}^{ensuremath{Theta}}$. Experimentally obtained $ensuremath{Theta}$ values have been reported in the range of 0.43--0.48 for metallic SWNTs. However, these values are much larger than the theoretical upper limit of the exponent, ${ensuremath{Theta}}_{mathrm{max}}=1∕8$, for the Hubbard model. Here, we show that the observed electronic transport properties can be explained by taking into account a specific hard-core Coulomb interaction. For a many-body system with a hard-core potential, we analytically calculate the critical exponents using the Bethe ansatz and conformal field theory. We find strongly interacting Luttinger liquid states that are characterized by large $ensuremath{Theta}$ values, consistent with the empirical results, suggesting that these states are actually realized in metallic SWNTs and organic conductors." @default.
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- W2003179904 date "2007-03-08" @default.
- W2003179904 modified "2023-09-27" @default.
- W2003179904 title "Strongly interacting Luttinger liquid states as those inherent in carbon nanotubes" @default.
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- W2003179904 doi "https://doi.org/10.1103/physrevb.75.125407" @default.
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