Manning, A. G.
Khakimov, R. I.
Dall, R. G.
Truscott, A. G.
Article History
Received: 9 October 2014
Accepted: 22 April 2015
First Online: 25 May 2015
Change Date: 3 June 2015
Change Type: Corrigendum
Change Details: In the version of this Letter originally published, a sentence in the text describing the points in Fig. 3 was incorrect and should have read: 'The distinction between the removal (blue points) and application (red points) of the mixing π/2 pulse is very clear, as the former is ~50% irrespective of the phase <i>ϕ</i>, while the latter shows the expected sinusoidal dependence on <i>ϕ</i>, typical of a Mach–Zehnder interferometer.' This has now been corrected in all versions of the Letter.
Competing interests
: The authors declare no competing financial interests.