Abstract
Einstein asked: whether I really believed that the moon exists only when I look at it”. In this essay, we partially try to answer this question. We considered some realistic non-local hidden variable models which simulate the quantum correlation function (singlet state). We have derived inequalities which are based on these models and show that these inequalities are violated by quantum predictions. It prompts revisiting such models from logical perspective. These results raise some questions: Can quantum predictions are simulated by nonlocal realistic models? Can this approach be extended to general cases? In this essay, We will try to answer these questions.
Akbar Fahmi