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arXiv 1003.5738cond-mat.mes-hall
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Coulomb blockade问题中电子分布的弛豫动力学

Relaxation dynamics of the electron distribution in the Coulomb blockade problem

Ya. I. Rodionov I. S. Burmistrov N. M. Chtchelkatchev

AI总结:

本文研究了单电子晶体管岛上电子分布函数的弛豫动力学,推导了无相干相互作用区的量子动力学方程并获得解析解,发现Coulomb相互作用强烈改变了通常的指数弛豫行为。

摘要:

我们研究了单电子晶体管岛上电子分布函数的弛豫动力学。我们关注“无相干相互作用”区,在此区域电子相干性可忽略,但由于Coulomb相互作用,电荷量子涨落强烈。推导了由于电子逃逸到储层而导致电子分布函数演化的量子动力学方程。在弱和强Coulomb blockade区获得了电子分布时间依赖性的解析解。我们发现,由于Coulomb相互作用的存在,通常的时间指数弛豫被强烈改变。

英文摘要:

We study the relaxation dynamics of electron distribution function on the island of a single electron transistor. We focus on the 'interaction without coherence regime in which an electron coherence can be neglected but quantum fluctuations of charge are strong due to Coulomb interaction. The quantum kinetic equation governing the evolution of the electron distribution function due to escape of electrons to the reservoirs is derived. Analytical solutions for time-dependence of the electron distribution are obtained in the regimes of weak and strong Coulomb blockade. We find that usual exponential in time relaxation is strongly modified due to the presence of Coulomb interaction.

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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