2007/01/31 by Mihajlo Vanevic, Mihajlo Vanević, Yuli V. Nazarov +1 · 3 citations
Computer Science · Physics and Astronomy · #Electron #Electron transfer #Formalism (music) #Physics #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum electrodynamics #Quantum mechanics #Quantum point contact #Quantum well #Spectroscopy and Quantum Chemical Studies #Statistical physics #Voltage #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevlett.99.076601
published as Phys. Rev. Lett. 99, 076601 (2007) · 4 pages, 2 figures; to appear in PRL. Version 1 contains additional results for noise and the third cumulant at finite temperatures [Eqs. (19) and (20)]
arxiv created 2007/08/09 · openalex publication_date 2007/08/13 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We find 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.