Project: Quantum realisation of the SI ampere

The ampere is the SI base unit of electric current. In the proposed redefinition for 2018, the ampere will be based on the value of the elementary charge, a fundamental physical constant that is the magnitude of the charge on an electron. To ensure that the new ampere can be directly realised, methods are needed that can accurately and reliably generate an electric current by controlling the flow of individual electrons. One practical method for achieving this is to use single-electron sources that generate currents by introducing just one electron at a time into a circuit. This project, built on the achievements of EMRP project SIB07 Qu-Ampere will develop capabilities for the fabrication, testing and validation of single-electron sources. These capabilities will be used to support the ampere redefinition, and will be available for industrial users to calibrate their small-current measurement devices and instruments to ensure consistency in traceable current measurements.

Acronym 15SIB08 e-SI-Amp (Reference Number: 15SIB08)
Duration 01/05/2016 - 01/05/2019
Project Topic Metrology
Project Results
(after finalisation)
See Website
Website visit project website
Network EMPIR
Call EMPIR CALL 2015

Project partner

Number Name Role Country
1 NPL Management Limited Coordinator United Kingdom
2 Laboratoire national de métrologie et d'essais Partner France
3 Physikalisch-Technische Bundesanstalt Partner Germany
4 Turkiye Bilimsel ve Teknolojik Arastirma Kurumu Partner Turkey
5 Teknologian tutkimuskeskus VTT Oy Partner Finland
6 Aalto-korkeakoulusäätiö sr Partner Finland
7 Commissariat à l'énergie atomique et aux énergies alternatives Partner France
8 The Chancellor, Masters and Scholars of the University of Cambridge Partner United Kingdom
9 University of Southampton Partner United Kingdom
10 Korea Research Institute of Standards and Science Observer Korea, Republic of