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Full counting statistics of renormalized dynamics in open quantum transport system |
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| Authors: | JunYan Luo Yu ShenXiao-Ling He Xin-Qi Li YiJing Yan |
| Institution: | a School of Science, Zhejiang University of Science and Technology, Hangzhou, 310023, China b Department of Chemistry, Hong Kong University of Science and Technology, Kowloon, Hong Kong SAR, China c State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing 100083, China d Department of Physics, Beijing Normal University, Beijing 100875, China |
| Abstract: | The internal dynamics of a double quantum dot system is renormalized due to coupling respectively with transport electrodes and a dissipative heat bath. Their essential differences are identified unambiguously in the context of full counting statistics. The electrode coupling caused level detuning renormalization gives rise to a fast-to-slow transport mechanism, which is not resolved at all in the average current, but revealed uniquely by pronounced super-Poissonian shot noise and skewness. The heat bath coupling introduces an interdot coupling renormalization, which results in asymmetric Fano factor and an intriguing change of line shape in the skewness. |
| Keywords: | Full counting statistics Double quantum dots Renormalized dynamics |
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