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← ScienceIn a Josephson junction operating near absolute zero, which behavior defines current flow?
A)Cooper-pair quantum tunneling process✓
B)Thermionic emission increase linearly
C)Space-charge limited current dominates
D)Ohmic conduction follows applied voltage
💡 Explanation
Supercurrent in a Josephson junction relies on Cooper-pair tunneling through a thin barrier, because the quantum mechanical Wave Function can penetrate it. Therefore, current passes even with no voltage, rather than following classical conduction.
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