/ 98 10 18 1 v 1 2 2 O ct 1 99 8 Long - range interactions in a one - dimensional electron system ∗ Stefano Bellucci
نویسنده
چکیده
We study the unscreened Coulomb interaction in a one-dimensional electron system at low-energy. We use renormalization group methods and a GW approximation, in order to analyze the model. This yields both a strong wavefunction renormalization and a renormalization of the Fermi velocity. The significance of the effects depends on the filling level of the Fermi system. Despite the longrange character of the interaction, the system still falls into the Luttinger liquid universality class, since the effective couplings remain bounded at arbitrarily low energies. * To be published in the Proceedings of the 6th International Conference on PathIntegrals from peV to TeV, Florence, Italy, 25-29 August 1998
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