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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Pekola, J.P. Averin, D.V. Kafanov, S. Kemppinen, A. Lotkhov, S.V. Maisi, V.F. Meschke, M. Möttönen, M. Pashkin, Y.A. Saira, O. Tsai, J.S. Zorin, A.B. |
| Copyright Year | 2010 |
| Description | Author affiliation: Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany (Lotkhov, S.V.; Zorin, A.B.) || Low Temperature Laboratory, Helsinki University of Technology, P.O. Box 3500, 02015 TKK, Finland (Pekola, J.P.; Kafanov, S.; Meschke, M.; Möttönen, M.; Saira, O.) || Department of Physics and Astronomy, Stony Brook University, SUNY, New York 11794-3800, USA (Averin, D.V.) || MIKES, P.O. Box 9, 02151 Espoo, Finland (Kemppinen, A.; Maisi, V.F.) || NEC Nano Electronics Research Laboratories, Tsukuba, Ibaraki 305-8501, Japan (Pashkin, Y.A.; Tsai, J.S.) |
| Abstract | First I discuss various candidates of single-electron current pumps for quantum metrology. Then I focus on the hybrid normal-metal-superconductor turnstile in the form of a one-island single-electron transistor with one gate [1-3]. The device demonstrates robust current plateaus at multiple levels of ef at frequency f. I discuss the various error mechanisms, based on our experiments and theoretical considerations. Ultimately the quantization accuracy is expected to be limited by either two-electron tunneling or by Cooper-pair-electron co-tunneling [4]. We predict that it should be possible to achieve the metrological accuracy of $10^{−8},$ while maintaining the quantized current on the level of more than 10 pA, just by one turnstile with realistic parameters using aluminium as a superconductor. Recently we have managed to run ten turnstiles in parallel increasing the current level to above 100 pA [5]. Work on suppressing the harmful sub-gap leakage current is in progress with encouraging experimental results. |
| Starting Page | 88 |
| Ending Page | 88 |
| File Size | 158757 |
| Page Count | 1 |
| File Format | |
| ISBN | 9781424467952 |
| e-ISBN | 9781424467976 |
| DOI | 10.1109/CPEM.2010.5544502 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-06-13 |
| Publisher Place | Korea (South) |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Current Physics Laboratories Space technology Electromagnetic measurements Measurement standards Temperature Astronomy Chemical technology National electric code |
| Content Type | Text |
| Resource Type | Article |
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