Conductance increase by electron-phonon interaction in quantum wires

We investigate the influence of electron-phonon interactions on the dc conductance Γ of a quantum wire in the limit of one occupied subband. At zero temperature, a Tomonaga-Luttinger-like renormalization of Γ to a value slightly larger than 2${\mathit{e}}^2$/h is calculated for a realistic quantum wire model. © 1996 The American Physical Society.