Publications Repository - Gdańsk University of Technology

It is known that the local bound of a Bell inequality is sensitive to the knowledge of the external observer about the settings statistics. Here we ask how that sensitivity depends on the structure of that knowledge. It turns out that in some cases it may happen that the local bound is much more sensitive to the adversaryʼs knowledge about the settings of one party than the other. Remarkably, there are Bell inequalities which are highly asymmetric with respect to the adversaryʼs knowledge about local settings. This property may be viewed as a hidden intrinsic asymmetry of Bell inequalities. Potential implications of the revealed asymmetry effect are also discussed.

Authors

• prof. dr hab. Paweł Horodecki link open in new tab ,
• Marcin Pawłowski,
• Ryszard Horodecki