General Bounds on Electronic Shot Noise in the Absence of Currents,Physical Review Letters

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General Bounds on Electronic Shot Noise in the Absence of Currents
Physical Review Letters ( IF 8.1 ) Pub Date : 2021-09-21 , DOI: 10.1103/physrevlett.127.136801
Jakob Eriksson _{1,

2} , Matteo Acciai ₁ , Ludovico Tesser ₁ , Janine Splettstoesser ₁

Affiliation

We investigate the charge and heat electronic noise in a generic two-terminal mesoscopic conductor in the absence of the corresponding charge and heat currents. Despite these currents being zero, shot noise is generated in the system. We show that, irrespective of the conductor’s details and the specific nonequilibrium conditions, the charge shot noise never exceeds its thermal counterpart, thus establishing a general bound. Such a bound does not exist in the case of heat noise, which reveals a fundamental difference between charge and heat transport under zero-current conditions.

中文翻译：

无电流时电子散粒噪声的一般界限

我们研究了在没有相应的电荷和热电流的情况下通用两端介观导体中的电荷和热电子噪声。尽管这些电流为零，但系统中仍会产生散粒噪声。我们表明，无论导体的细节和特定的非平衡条件如何，电荷散粒噪声永远不会超过其热对应物，从而建立了一般界限。在热噪声的情况下不存在这样的界限，这揭示了零电流条件下电荷和热传输之间的根本区别。

更新日期：2021-09-21

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