Abstract
Phys. Rev. B, vol.68, pag.165312 (2003) We study charge and spin pumping in an interacting one-dimensional wire. We
show that a spatially periodic potential modulated in space and time acts as a
quantum pump inducing a dc-current component at zero bias. The current
generated by the pump is strongly affected by the interactions. It has a power
law dependence on the frequency or temperature with the exponent determined by
the interaction in the wire, while the coupling to the pump affects the
amplitudes only. We also show that pure spin-pumping can be achieved, without
the presence of a magnetic field.