The EPR paradox was about this property's supposed violation of locality.
Applying a Hadamard gate followed by a CNOT gate causes the control and target bits to have this property. In quantum teleportation, the parties start with qubits with this property. For two state systems, a state maximal for this property is 1-over-√2 ket-00 + 1-over-√2 ket-11, which can be used to violate the CHSH inequality as well as (*) Bell's inequality. The EPR paradox was about this property's supposed violation of locality. If the state of two systems cannot be decomposed into a product of individual states, then those systems have this property. For 10 points, name this property of quantum systems in which the states of subsystems are correlated, which Einstein derided as "spooky action at a distance."
Applying a Hadamard gate followed by a CNOT gate causes the control and target bits to have this property.
quantum entanglement