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Elementary events of electron transfer in a voltage-driven quantum point contact | | Mihajlo Vanevic
; Yuli V. Nazarov
; Wolfgang Belzig
; | | Date: |
12 Jan 2007 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | | Abstract: | We show that the statistics of electron transfer in a coherent quantum point contact driven by an arbitrary time-dependent voltage is composed of elementary events of two kinds: unidirectional one-electron transfers determining the average current and bidirectional two-electron processes contributing to the noise only. This result pertains at vanishing temperature while the extended Keldysh-Green’s function formalism in use also enables the systematic calculation of the higher-order current correlators at finite temperatures. | | Source: | arXiv, cond-mat/0701282 | | Services: | Forum | Review | PDF | Favorites | |
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