Simulations of quantum nonlocality with local negative bits
Kelvin Onggadinata, Paweł Kurzyński, Dagomir Kaszlikowski · Physical Review A · 2023
We propose a simple simulation of nonlocal quantum correlations among $N$ qubits using a local hidden variable source with a positive probability distribution, given that each of the $N$ observers has access to a local negative bit. Notably, unlike the Toner-Bacon protocol, no exchange of classical bits between the observers is required. Moreover, our simulation can be extended to include Popescu-Rohrlich box correlations.