Ottaviani, Carlo http://orcid.org/0000-0002-0032-3999
Lupo, Cosmo
Laurenza, Riccardo
Pirandola, Stefano http://orcid.org/0000-0001-6165-5615
Article History
Received: 25 January 2019
Accepted: 29 July 2019
First Online: 30 September 2019
Competing interests
: S.P. is an Editorial Board Member of Communications Physics, but was not involved in the editorial review of, nor the decision to publish, this article. The remaining authors declare no competing interests.