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← ScienceWhich outcome results when quantum wells have insufficient overlap in a coupled double quantum dot system?
A)Suppressed electron tunneling amplitude✓
B)Increased decoherence from phonons
C)Enhanced spin-orbit coupling effects
D)Increased thermal conductivity between dots
💡 Explanation
A small energy gap causes suppressed electron tunneling amplitude because quantum mechanical coupling depends exponentially on the barrier width and potential energy of the wave functions. Therefore, electron tunneling is diminished rather than another interaction because of the poor wavefunction overlap.
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