Spin-orbit coupling and spectral function of interacting electrons in carbon nanotubes

  title={Spin-orbit coupling and spectral function of interacting electrons in carbon nanotubes},
  author={Andreas Schulz and Alessandro De Martino and Reinhold Egger},
  journal={Physical Review B},
The electronic spin-orbit coupling in carbon nanotubes is strongly enhanced by the curvature of the tube surface and has important effects on the single-particle spectrum. Here, we include the full spin-orbit interaction in the formulation of the effective low-energy theory for interacting electrons in metallic single-wall carbon nanotubes and study its consequences. The resulting theory is a four-channel Luttinger liquid, where spin and charge modes are mixed. We show that the analytic… 

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