Correlation effects on resonant tunneling in one-dimensional quantum wires

TL;DR

This paper investigates how electron interactions affect resonant tunneling in one-dimensional quantum wires, revealing power-law behaviors and non-universal conductance features depending on system parameters.

Contribution

It provides a microscopic model analysis of conductance in a Luttinger liquid with double barriers, highlighting the influence of correlation effects on tunneling behavior.

Findings

Conductance exhibits power-law dependence on temperature in certain regimes.

Peak conductance behavior varies non-universally with system parameters.

Identification of parameter regimes with distinctive tunneling characteristics.

Abstract

We study resonant tunneling in a Luttinger liquid with a double barrier enclosing a dot region. Within a microscopic model calculation the conductance G as a function of temperature T is determined over several decades. We identify parameter regimes in which the peak value G_p(T) shows distinctive power-law behavior. For intermediate dot parameters G_p behaves in a non-universal way.