Nature Communications 6: Article number: 5816 (2015); Published: 8 January 2015; Updated: 5 March 2015

The affiliation details for A. Isayama, K. Shinohara, P.S. Bawankar, X.L. Huang, M. Ohno, S. Pandya, R. Sano and H. Zhang as part of the LHD Experiment Group were incorrect in this Article. The correct affiliation details for these authors are listed below:

A. Isayama8, K. Shinohara8, P.S. Bawankar5, X.L. Huang5, M. Ohno5, S. Pandya5, R. Sano5, H. Zhang5

5The Graduate University for Advanced Studies, 322-6 Oroshi, Toki, Gifu 509-5292, Japan. 8Japan Atomic Energy Agency, Naka, Ibaraki 311-0193, Japan.