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Which information transfer failure occurs when entangled qubits decohere?

A)Reduced fidelity of quantum teleportation
B)Increased entanglement swapping distance
C)Enhanced quantum key distribution rate
D)Improved quantum error correction efficiency

💡 Explanation

Decoherence introduces environmental noise which disrupts quantum entanglement and collapses the wave function due to wave function collapse, therefore fidelity declines during quantum teleportation rather than allowing increased entanglement distance, because decoherence degrades entangled pairs.

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