Device-independent witness of arbitrary-dimensional quantum systems employing binary-outcome measurements
Mikołaj Czechlewski , Debashis Saha , Armin Tavakoli , Marcin Pawłowski
AbstractDevice-independent dimension witnesses (DWs) are a remarkable way to test the dimension of a quantum system in a prepare-and-measure scenario imposing minimal assumptions on the internal features of the devices. However, as the dimension increases, the major obstacle in the realization of DWs arises due to the requirement of many-outcome quantum measurements. In this article we propose a variant of a widely studied communication task (random access code) and take its average payoff as the DW. The presented DW applies to arbitrarily large quantum systems employing only binary-outcome measurements.
|Journal series||Physical Review A, ISSN 1050-2947, (A 35 pkt)|
|Publication size in sheets||0.5|
|Score||= 35.0, 24-07-2019, ArticleFromJournal|
|Publication indicators||: 2017 = 0.886; : 2014 = 2.808 (2) - 2014=2.628 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.