Which consequence arises when maximum spatial separation prevents wavefunction overlap in an entangled pair of barium atoms used for quantum key generation?

💡 Explanation

Eavesdropping becomes probabilistically detectable, because disturbance from measurement collapses entanglement via decoherence; therefore revealing eavesdropping actions, rather than prolonging coherence. No wavefunction overlap means the quantum correlation breaks between entangled particle pairs.

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