Bosonic description of a Tomonaga-Luttinger model with impurities

VICTORIA I. FERNÁNDEZ; KANG LI; CARLOS M. NAÓN

PHYSICS LETTERS B

Elsevier

Año: 1999 vol. 452 p. 98 - 102

0370-2693

We extend a recently proposed non-local version of Coleman´s equivalence between the Thirring and sine-Gordon models to the case in which the original fermion fields interact with fixed impurities. We explain how our results can be used in the context of one-dimensional strongly correlated systems (the so called Tomonaga-Luttinger model) to study the dependence of the charge-density oscillations on the range of the fermionic interactions.