Interaction-induced corrections to conductance and thermopower in quantum wires.
We study transport properties of weakly interacting spinless electrons in one-dimensional single-channel quantum wires. The effects of interaction manifest as three-particle collisions due to the severe constraints imposed by the conservation laws on the two-body processes. We focus on short wires where the effects of equilibration on the distribution function can be neglected and the collision integral can be treated in perturbation theory. We find that interaction-induced corrections to conductance and thermopower rely on the scattering processes that change the number of right- and left-moving electrons. The latter requires transition at the bottom of the band which is exponentially suppressed at low temperatures. Our theory is based on the scattering approach that is beyond the Luttinger-liquid limit. We emphasize the crucial role of the exchange terms in the three-particle scattering amplitude that was not discussed in previous studies.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1004049
- Report Number(s):
- ANL/MSD/JA-68792
- Journal Information:
- Phys. Rev. B, Journal Name: Phys. Rev. B Journal Issue: Jan. 19, 2011 Vol. 83; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- ENGLISH
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