  We study the influence of structural lattice fluctuations on the elastic
electron transport in single-wall carbon nanotubes within a
density-functional-based scheme. In the linear response regime, the linear
conductance is calculated via configurational averages over the distorted
lattice. Results obtained from a frozen-phonon approach as well as from
molecular dynamics simulations are compared. We further suggest that the effect
of structural fluctuations can be qualitatively captured by the Anderson model
with bond disorder. The influence of individual vibrational modes on the
electronic transport is discussed as well as the role of zero-point
fluctuations.
