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Observing sub-microsecond telegraph noise with the radio frequency single electron transistor | | T. M. Buehler
; D. J. Reilly
; R. P. Starrett
; V. C. Chan
; A. R. Hamilton
; A. S. Dzurak
; R. G.Clark
; | | Date: |
22 Sep 2004 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | cond-mat.mes-hall | | Abstract: | Telegraph noise, which originates from the switching of charge between meta-stable trapping sites, becomes increasingly important as device sizes approach the nano-scale. For charge-based quantum computing, this noise may lead to decoherence and loss of read out fidelity. Here we use a radio frequency single electron transistor (rf-SET) to probe the telegraph noise present in a typical semiconductor-based quantum computer architecture. We frequently observe micro-second telegraph noise, which is a strong function of the local electrostatic potential defined by surface gate biases. We present a method for studying telegraph noise using the rf-SET and show results for a charge trap in which the capture and emission of a single electron is controlled by the bias applied to a surface gate. | | Source: | arXiv, cond-mat/0409568 | | Services: | Forum | Review | PDF | Favorites | |
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