The Bell inequalities were the original criteria used to establish the existence of entanglement.

(4) Today, this formulation of the Bell inequality remains in use.

The answer is precisely the Tsirelson bound for the particular Bell inequality in question.

The exact values are known for a few more Bell inequalities:

Experimental tests can determine whether the Bell inequalities required by local realism hold up to the empirical evidence.

If, on the other hand, quantum entanglement is correct the Bell inequality would be violated.

The Bell inequalities are the most powerful challenge to Einstein's claims.

Like the Bell inequalities and entanglement, we will have to wait before this can be tested.

Since so-called hidden variables are involved, the theory must deal with the Bell inequalities.

The Bell inequality is motivated by the absence of communication between the two measurement sites.

The Bell inequalities were the original criteria used to establish the existence of entanglement.

(4) Today, this formulation of the Bell inequality remains in use.

The answer is precisely the Tsirelson bound for the particular Bell inequality in question.

The exact values are known for a few more Bell inequalities:

Experimental tests can determine whether the Bell inequalities required by local realism hold up to the empirical evidence.

If, on the other hand, quantum entanglement is correct the Bell inequality would be violated.

The Bell inequalities are the most powerful challenge to Einstein's claims.

Like the Bell inequalities and entanglement, we will have to wait before this can be tested.

Since so-called hidden variables are involved, the theory must deal with the Bell inequalities.

The Bell inequality is motivated by the absence of communication between the two measurement sites.