Synchronized single electron emission from dynamical quantum dots

Autor: Mirovsky, P., Kaestner, B., Leicht, C., Welker, A. C., Weimann, T., Pierz, K., Schumacher, H. W.
Rok vydání: 2010
Předmět:
Zdroj: Appl. Phys. Lett. 97, 252104 (2010)
Druh dokumentu: Working Paper
DOI: 10.1063/1.3527940
Popis: We study synchronized quantized charge pumping through several dynamical quantum dots (QDs) driven by a single time modulated gate signal. We show that the main obstacle for synchronization being the lack of uniformity can be overcome by operating the QDs in the decay cascade regime. We discuss the mechanism responsible for lifting the stringent uniformity requirements. This enhanced functionality of dynamical QDs might find applications in nanoelectronics and quantum metrology.
Comment: 4 pages, 3 figures, submitted to APL
Databáze: arXiv