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← ScienceWhich mechanism causes quantized magnetic flux through a Josephson junction?
A)Cooper pair quantum interference✓
B)Drude model electron scattering
C)Phonon-induced lattice vibrations
D)Enhanced thermal conductivity effects
💡 Explanation
Cooper pair interference leads to flux quantization because a superconducting current flows across the junction only with specific phase differences; therefore magnetic flux is quantized, rather than showing continuous values, due to coherence.
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