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Which mechanism leads to quantized conductance in quantum wires?

A)Formation of subbands alters transmission
B)Increased alloy scattering reduces mean
C)Phonon drag alters bulk viscosity
D)Superconducting pairing reduces resistance

💡 Explanation

Subband formation due to quantum confinement alters the transverse electron momentum, leading to discrete energy bands and thus quantized conductance because electron transmission is directly stepped therefore limiting current, rather than modifications to resistivity properties

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