Full counting statistics of the two-stage Kondo effect

被引：6
作者：
Karki, D. B. [1 ,2 ]
Kiselev, Mikhail N. [1 ]
机构：
[1] Abdus Salam Int Ctr Theoret Phys ICTP, Str Costiera 11, I-34151 Trieste, Italy
[2] Int Sch Adv Studies SISSA, Via Bonomea 265, I-34136 Trieste, Italy
来源：
PHYSICAL REVIEW B | 2018年 / 98卷 / 16期
关键词：
QUANTUM SHOT-NOISE; DOTS; CONDUCTORS; TRANSPORT; ELECTRONS; METALS; STATES; FIELD; FLOW;
D O I：
10.1103/PhysRevB.98.165443
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We developed a theoretical framework which extends the method of full counting statistics (FCS) from conventional single-channel Kondo screening schemes to a multichannel Kondo paradigm. The developed idea of FCS has been demonstrated considering an example of a two-stage Kondo (2SK) model. We analyzed the charge-transferred statistics in the strong-coupling regime of a 2SK model using a nonequilibrium Keldysh formulation. A bounded value of the Fano factor, 1 <= F <= 5/3, confirmed the crossover regimes of charge-transferred statistics in the 2SK effect, from Poissonian to super-Poissonian. An innovative way of measuring the transport properties of the 2SK effect, by the independent measurements of charge current and noise, has been proposed.
引用
收藏
页数：10
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