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← ScienceWhich outcome arises when resonant tunneling causes electron localization within a coupled quantum dot system?
A)Enhanced Coulomb blockade effect✓
B)Increased electron-phonon scattering
C)Suppressed inter-dot electron transfer
D)Reduced quantum dot decoherence
💡 Explanation
Resonant tunneling aligns energy levels enabling electron flow, but in coupled quantum dots localization enhances the Coulomb blockade because it inhibits transport. This effect becomes stronger, therefore suppressing further electron flow rather than reducing decoherence or increasing phonon activity.
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