Title :
Radio-frequency transport of single electrons in superconductor-normal-metal tunnel junctions and the quantum metrological triangle
Author :
Kemppinen, A. ; Maisi, V.F. ; Saira, O. -P ; Kafanov, S. ; Lotkhov, S.V. ; Pashkin, Yu A. ; Aref, T. ; Meschke, M. ; Möttönen, M. ; Hahtela, O. ; Hassel, J. ; Luomahaara, J. ; Mykkänen, E. ; Koivula, H. ; Averin, D.V. ; Seppä, H. ; Tsai, J.S. ; Zorin, A.B
Author_Institution :
Centre for Metrol. & Accreditation (MIKES), Espoo, Finland
Abstract :
We are developing a single-electron turnstile based on a nanoscale superconductor-insulator-normal-metal-insulator-superconductor (SINIS) structure. The goal is to obtain the frequency to current conversion I = ef with a relative uncertainty <; 10-8 which would be sufficient for a quantum-based standard of electric current. Finally, the quantum current standard will be compared against the quantum standards of voltage and resistance via Ohm´s law in the quantum metrological triangle experiment.
Keywords :
single electron transistors; superconductive tunnelling; Ohm law; electric current; frequency-current conversion; nanoscale SINIS structure; quantum current standard; quantum metrological triangle experiment; radio-frequency transport; single-electron transistor; single-electron turnstile; superconductor-insulator-normal-metal-insulator- superconductor structure; superconductor-normal-metal tunnel junction; Detectors; Educational institutions; Noise; Resistance; Tunneling; Uncertainty;
Conference_Titel :
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-5117-3
DOI :
10.1109/URSIGASS.2011.6050291
