Generalizing optimal Bell inequalities

Understand

Bell inequalities are central tools for studying nonlocal correlations and their applications in quantum information processing.

• Identifying inequalities for many particles or measurements is, however, difficult due to the computational complexity of characterizing the set of local correlations.
• We develop a method to characterize Bell inequalities under constraints, which may be given by symmetry or other linear conditions.
• This allows to search systematically for generalizations of given Bell inequalities to more parties.