Publications Repository - Gdańsk University of Technology

We deal with families of probability distributions satisfying non-signalling condition, called non-signalling boxes and consider a class of operations that transform local boxes into local ones (the one that admit LHV model). We prove that any operation from this class cannot broadcast a bipartite non-local box with 2 binary inputs and outputs. We consider a function called anti-Robustness which can not decrease under these operations. The proof reduces to showing that anti-Robustness would decrease after broadcasting

Authors

• P. Joshi,
• Andrzej Grudka,
• Karol Horodecki,
• Michał Horodecki,
• prof. dr hab. Paweł Horodecki link open in new tab ,
• Ryszard Horodecki