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arXiv 0709.2089cond-mat.mes-hallcond-mat.str-el
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SU(N)费米液态近藤量子点的电流噪声

Current noise through a Kondo quantum dot in a SU(N) Fermi liquid state

Christophe Mora, Xavier Leyronas, Nicolas Regnault

摘要:

在SU(N)Kondo模型的费米液相区,计算和分析了介观量子点的电流噪声。结果表明,对于任意的电压和温度比,约翰逊-奈奎斯特噪声与散粒噪声相关联,并且在通常的实验中温度校正是相当大的。对于实验相关的SU(4)的情况下,准粒子相互作用被证明是增加的散粒噪声。

英文摘要:

The current noise through a mesoscopic quantum dot is calculated and analyzed in the Fermi liquid regime of the SU(N) Kondo model. Results connect the Johnson-Nyquist noise to the shot noise for an arbitrary ratio of voltage and temperature, and show that temperature corrections are sizeable in usual experiments. For the experimentally relevant SU(4) case, quasiparticle interactions are shown to increase the shot noise.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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