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← ScienceWhich mechanism causes a quantum computer employing superconducting qubits to lose entanglement?
A)Electromagnetic interference inducing decoherence
B)Josephson junctions causing phase slips
C)Thermal fluctuations producing quasiparticles✓
D)Flux pinning increasing energy dissipation
💡 Explanation
Thermal fluctuations produce pairs of quasiparticles because they break Cooper pairs in the superconductor, driving decoherence. Therefore, quantum computers lose entanglement due to quasiparticles, rather than magnetic interference which contributes less during cryogenic operation.
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