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Transport properties of partially equilibrated quantum wires

机译:部分平衡的量子线的传输性质

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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.
机译:我们研究了热平衡对弱相互作用的一维电子系统的输运性质的影响。尽管由于相空间限制和守恒定律而严重地抑制了平衡,但它可能导致部分平衡的量子线中出现有趣的签名。我们考虑理想的均质量子线。在有限的温度下,我们发现了对量化电导的校正,对于短导线,该电导随其长度成比例,但会在无限长的导线的极限处达到饱和。我们还将讨论长量子线的热电特性。我们表明,均匀量子线是一种理想的热电制冷机,随着线长的增加,其达到卡诺效率。

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