Transport through a quantum dot with two parallel Luttinger liquid leads

Abstract

We study transport through a quantum dot side-coupled to two parallel Luttinger liquid leads in the presence of a Coulombic dot-lead interaction. This geometry enables an exact treatment of the inter-lead Coulomb interactions. We find that for dots symmetrically disposed between the two leads the correlation of charge fluctuations between the two leads can lead to an enhancement of the current at the Coulomb-blockade edge and even to a negative differential conductance. Moving the dot off center or separating the wires further converts the enhancement to a suppression.

References in corpus (6)

• Molecular Transport Junctions: Vibrational Effects
• Twofold advance in the theoretical understanding of far-from-equilibrium properties of interacting nanostructures
• Exact low temperature results for transport properties of the interacting resonant level model
• Quantum Wire Hybridized with a Single-Level Impurity
• Interacting resonant level coupled to a Luttinger liquid: Population vs. density of states
• Transport through a quantum dot with excitonic dot-lead coupling

Cited by in corpus (6)

• Image charge dynamics in time-dependent quantum transport
• Hierarchical equations of motion approach to transport through an Anderson impurity coupled to interacting Luttinger liquid leads
• Consistent bosonization-debosonization I: A resolution of the non-equilibrium transport puzzle
• Phonon-assisted thermoelectric effects in a two-level molecule
• Spin-current rectification through a quantum dot using temperature bias
• Stochastic Schrödinger equation approach to real-time dynamics of Anderson-Holstein impurities: an open quantum system perspective