Transport properties of a Luttinger liquid with a cluster of impurities
arXiv:1811.08175 · doi:10.1016/j.physe.2019.02.003
Abstract
In this work, the correlation functions of a Luttinger liquid with a cluster of impurities around an origin obtained using the Non chiral bosonization technique (NCBT) are used to study two important physical phenomena, viz., conductance and resonant tunneling. The latter is studied when the cluster consists of two impurities separated by a distance (measured in units of the Fermi wavelength). Conductance is studied both in the Kubo formalism, which relates it to current-current correlations (four-point functions), as well as the outcome of a tunneling phenomena (two-point functions). In both the cases, closed analytical expressions for conductance are calculated and a number of interesting physical observations are discussed, besides presenting a favorable comparison with the existing literature.
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