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arXiv 1302.4069cond-mat.str-elcond-mat.mes-hall
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近藤关联量子点中的普适非平衡输运

Universal out-of-equilibrium transport in Kondo-correlated quantum dots

A. A. Aligia

摘要:

结果表明,在相互作用量子点的普遍非平衡输运[E.穆尼奥斯角J. Bolech和S. Kirchner,Phys. Rev. Lett. 110,016601(2013)]不正确。本文从粒子-空穴对称杂质Anderson模型中库仑排斥的重整化二阶微扰理论出发。报告的较小的自能与正确的,并与分析结果有效的小频率和施加的电压。由于这些错误的结果,电流守恒不成立,结果也不可靠。

英文摘要:

It is shown that the lesser and greater self energies and Green functions calculated in a recent work on universal noequilibrium transport in interacting quantum dots [E. Muñoz, C. J. Bolech, and S. Kirchner, Phys. Rev. Lett. 110, 016601 (2013)] are incorrect. The authors start from renormalized second-order perturbation theory in the Coulomb repulsion in the particle-hole symmetric impurity Anderson model. The reported lesser self-energy is compared with the correct one, and with an analytic result valid for small frequency and applied voltage. As a consequence of the mistakes, the conservation of the current is not established and the results are unreliable.

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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