Effective low-energy theory for correlated carbon nanotubes

TL;DR

This paper develops a low-energy theoretical model for single-wall carbon nanotubes with Coulomb interactions, analyzing their properties using bosonization and discussing experimental implications.

Contribution

It introduces a novel low-energy theory for correlated carbon nanotubes that accounts for Coulomb interactions without interchain hopping.

Findings

Bosonization reveals strong-coupling behavior.

The theory predicts experimental signatures in armchair nanotubes.

Abstract

The low-energy theory for single-wall carbon nanotubes including Coulomb interactions is derived and analyzed. It describes two fermion chains without interchain hopping but coupled in a specific way by the interaction. The strong-coupling properties are studied by bosonization, and consequences for experiments on single armchair nanotubes are discussed.