Master Quantum Entanglement
Explore the strange world of quantum entanglement! These games challenge you to understand and exploit non-local correlations, Bell's inequality, and the fundamental weirdness Einstein refused to accept.
Run a Bell test experiment! Measure entangled photon pairs at different angles. Classical (hidden variable) theories predict correlations ≤ 2.0. Quantum mechanics predicts up to 2.828. Can you violate Bell's inequality and prove quantum non-locality? Collect 20 measurements to calculate your S value!
Teleport a quantum state using entanglement! Alice has a qubit she wants to send to Bob. They share an entangled EPR pair. Alice performs a Bell measurement on her qubit + her half of the pair, then sends the classical result to Bob. Bob applies the correct gate based on Alice's measurement. Get all steps right to successfully teleport the state!
Implement the BB84 quantum key distribution protocol! Alice sends qubits in random bases (rectilinear or diagonal). Bob measures in random bases. They compare bases publicly—only matching bases give reliable bits. But watch out: Eve the eavesdropper might try to intercept! Any eavesdropping disturbs the quantum states and reveals itself through errors. Generate a secure key while detecting intrusions!
Build a quantum network! Alice and Bob each have half of an EPR pair, and Bob and Charlie each have half of a different EPR pair. Bob performs a Bell measurement on his two particles—this "swaps" the entanglement, making Alice and Charlie entangled even though their particles never interacted! Connect nodes by swapping entanglement to create long-distance quantum links.
Test your deep understanding of entanglement, Bell's theorem, quantum non-locality, and the experimental tests that proved Einstein wrong. Questions cover the EPR argument, hidden variables, and real-world applications.