Transport properties of partially equilibrated quantum wires.
We study the effect of thermal equilibration on the transport properties of a weakly interacting one-dimensional electron system. Although equilibration is severely suppressed due to phase-space restrictions and conservation laws, it can lead to intriguing signatures in partially equilibrated quantum wires. We consider an ideal homogeneous quantum wire. At finite temperature we find a correction to the quantized conductance, which for a short wire scales with its length, but saturates in the limit of an infinitely long wire. We also discuss thermoelectric properties of long quantum wires. We show that the uniform quantum wire is a perfect thermoelectric refrigerator, approaching Carnot efficiency with increasing wire length.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC; Deutsche Forschungsgemeinschaft; CeNS - Munich; NIM - Munich
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 981327
- Report Number(s):
- ANL/MSD/JA-65485
- Journal Information:
- Phys. Rev. B, Journal Name: Phys. Rev. B Journal Issue: 2010 Vol. 81; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- ENGLISH
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