Device-independent witness of arbitrary-dimensional quantum systems employing binary-outcome measurements

Mikołaj Czechlewski , Debashis Saha , Armin Tavakoli , Marcin Pawłowski


Device-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.
Author Mikołaj Czechlewski (FMPI / II)
Mikołaj Czechlewski,,
- Institute of Informatics
, Debashis Saha (FMPI / ITPA)
Debashis Saha ,,
- Institute of Theoretical Physics and Astrophysics
, Armin Tavakoli
Armin Tavakoli,,
, Marcin Pawłowski (FMPI / ITPA)
Marcin Pawłowski,,
- Institute of Theoretical Physics and Astrophysics
Journal seriesPhysical Review A, ISSN 1050-2947, (A 35 pkt)
Issue year2018
Publication size in sheets0.5
Article number062305
ASJC Classification3107 Atomic and Molecular Physics, and Optics
Languageen angielski
Score (nominal)35
ScoreMinisterial score = 35.0, 24-07-2019, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.886; WoS Impact Factor: 2014 = 2.808 (2) - 2014=2.628 (5)
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