Charge sensitivity of the inductive single-electron transistor

Mika A. Sillanpää, Leif Roschier, Pertti J. Hakonen

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

We calculate the charge sensitivity of a recently demonstrated device where the Josephson inductance of a single Cooper-pair transistor is measured. We find that the intrinsic limit to detector performance is set by oscillator quantum noise. Sensitivity better than 10-6 eHz is possible with a high Q value ∼ 103, or using a superconducting quantum interference device amplifier. The model is compared to experiment, where charge sensitivity 3× 10-5 eHz and bandwidth 100 MHz are achieved.

Original languageEnglish
Article number092502
JournalApplied Physics Letters
Volume87
Issue number9
DOIs
Publication statusPublished - 29 Aug 2005
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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