Coulomb blockade in a quantum wire with long-range Coulomb interactions

Abstract

We study the transport through two impurities or ``barriers'' in a one-dimensional quantum wire, taking into account the long-range $\frac{1}{r}$ Coulomb interactions. We compute the temperature-dependent conductance $G(T)$ of this system. Long-range forces lead to a dramatic increase of weak barrier potentials with decreasing temperature, even in the ``resonant'' case. The system thus always reaches a ``strong barrier'' regime in which only charge is pinned, contrary to the standard LL case. $G(T)$ vanishes faster than any power as $T$ goes to zero. In particular, resonant tunneling is suppressed at zero temperature.

11 pages,1 figure, uses epsfig

References in corpus (6)

• Landauer Conductance of Luttinger Liquids with Leads
• Transport in an inhomogeneous interacting one--dimensional system
• Wigner Crystal in One Dimension
• DC--Transport in Quantum Wires
• Transport properties of a quantum wire in the presence of impurities and long-range Coulomb forces
• Resonance in One--Dimensional Fermi--Edge Singularity

Cited by in corpus (4)

• Luttinger-liquid-like transport in long InSb nanowires
• Transport of interacting electrons through a double barrier in quantum wires
• Charge and spin addition energies of one dimensional quantumn dot
• Transport in a Luttinger liquid with dissipation: two impurities