Kómár, P.
Kessler, E. M.
Bishof, M.
Jiang, L.
Sørensen, A. S.
Ye, J.
Lukin, M. D.
Article History
Received: 23 October 2013
Accepted: 20 May 2014
First Online: 15 June 2014
Competing interests
: The authors declare no competing financial interests.