Which outcome occurs when the momentum of an electron confined within a quantum dot increases?

💡 Explanation

Enhanced momentum increases the electron's kinetic energy; the quantum mechanical tunneling probability rises exponentially following the Wentzel-Kramers-Brillouin (WKB) approximation, because a higher energy makes barrier penetration easier. This result occurs, rather than options B-D, due to changes in penetration distance within the tunnelling mechanism.

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