Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
1997-01-06
Phys. Rev. B. 55, R7331 (1997-II)
Physics
Condensed Matter
Strongly Correlated Electrons
5 revtex pages; an improved and definite version
Scientific paper
10.1103/PhysRevB.55.R7331
The transport in a pure one-dimensional quantum wire is investigated for any range of interactions. First, the wire is connected to measuring leads. The transmission of an incident electron is found to be perfect, and the conductance is not renormalized by the interactions. Either Landauer's approach or Kubo formula can be used as long as the reservoirs impose the boundary conditions. Second, the Kubo formula as a response to the local field is reconsidered in a generic Luttinger liquid: the ``intrinsic'' conductance thus obtained is determined by the same combination of interaction parameters as that which renormalizes the current.
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