Erratum: Measurement of transverse emittance and coherence of double-gate field emitter array cathodes

Abstract

Nature Communications 7: Article number: 13976 (2016); Published 23 December 2016; Updated 24 February 2017 An incorrect version of the Supplementary Information was inadvertently published with this Article where wrong vector notation was used for equation (4), wrong font for ‘phi’ on page 10 and the wrong unit ‘(m)’ was used instead of ‘(mm)’ for the x-axis of Supplementary Fig.