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Article overview
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Non-adiabadic charge pumping in a hybrid SET transistor | Dmitri V. Averin
; Jukka P. Pekola
; | Date: |
11 Feb 2008 | Abstract: | We study theoretically current quantization in the charge turnstile based on
the hybrid (SINIS or NISIN) SET transistor. The quantization accuracy is
limited by either Andreev reflection or by Cooper pair - electron cotunneling.
The rates of these processes are calculated in the ’’above-the-threshold’’
regime when they compete directly with the lowest-order tunneling. We show that
by shaping the ac gate voltage driving the turnstile, it should be possible to
achieve the metrological accuracy of $10^{-8}$, while maintaining the absolute
value of the quantized current on the order of 30 pA, just by one turnstile
with realistic parameters using aluminium as superconductor. | Source: | arXiv, 0802.1364 | Services: | Forum | Review | PDF | Favorites |
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