Articulo
Friedel oscillations in a Luttinger liquid with long-range interactions
Autor
Fernández, Victoria Inés
Naón, Carlos María
Institución
Resumen
We introduce a path-integral approach that allows us to compute charge-density oscillations in a Luttinger liquid with impurities. We obtain an explicit expression for the envelope of Friedel oscillations in the presence of arbitrary electron-electron potentials. As examples, in order to illustrate the procedure, we show how to use our formula for contact and Coulomb potentials. Facultad de Ciencias Exactas Instituto de Física La Plata