Quantum Entanglement

Bell states visualized as correlated qubits on the Bloch sphere. Measure one qubit and the other instantaneously collapses — violating Bell's inequality by up to 2√2.

Bell State

Entanglement ε 1.00 Rotation speed 1.0

Measurement Results

A: —
B: —
Correlation: —
Bell S: —

Bell Inequality

Classical: |S| ≤ 2
Quantum: |S| ≤ 2√2
≈ 2.828

CHSH:
S=E(a,b)−E(a,b′)
+E(a′,b)+E(a′,b′)