Coulomb effects in transport properties of quantum wires
Abstract
The Coulomb 1/r interaction plays an important role in quantum wires. We study the interplay between this long-range interaction and impurity. For a single band quantum wire, we find that the transport properties are strongly modified. The linear conductance G is found to vanish with temperature as G~exp[-νln3/2(1/T)] and the current voltage characteristics acquires a thresholdlike behavior. The possible extension of the theory to the case of many-band quantum wires is discussed.
- Publication:
-
Physical Review Letters
- Pub Date:
- April 1994
- DOI:
- 10.1103/PhysRevLett.72.2235
- Bibcode:
- 1994PhRvL..72.2235F
- Keywords:
-
- 72.10.Bg;
- 73.20.Dx;
- General formulation of transport theory