计算量子点分子中束缚能级之间跃迁的振子强度表明，只有成键态和相应的反键态之间跃迁才是允许的。

And the bound state with the highest energy level in the quantum-dot molecule changes gradually into a quasibound state when the electric field strength increases.

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为了统一处理束缚态到束缚态和束缚态到连续态的跃迁，根据量子数亏损理论定义了广义振子强度密度。

In order to treat the bound-bound and bound-continuum transitions in a unified manner, the generalized oscillator strength density is defined.

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宽带可调谐准分子激光源，是电子束泵浦的双原子和三原子稀有气体卤化物通过束缚-自由跃迁产生的。

The development of a broadly tunable excimer laser source by exploiting bound-free transitions of electron beam-pumped diatomic and triatomic are gas halides is described.

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