Introducing Joint Research Project «Quantum Ampere» for the realisation of the new SI ampere Hansjörg Scherer, Stephen P. Giblin, Xavier Jehl, Antti Manninen, François Piquemal and David A. Ritchie EPJ Web of Conferences, 77 (2014) 00004 Published online: 19 August 2014 DOI: 10.1051/epjconf/20147700004