量子跃迁即处于高能级上的量子向低能级的跃迁过程。
真空衰变的基本条件是存在强电场。
The essential condition for the decay of the vacuum is the presence of an intense electric field.
作为真空衰变的一个结果，由这样一个电场充斥着的空间可谓是获得了一个电荷，该空间便可被称为带有电荷的真空。
As a result of the decay of the vacuum, the space permeated by such a field can be said to acquire an electric charge, and it can be called a charged vacuum.
这么大的原子核不可能是稳定的，但在足够长的时间内，在真空附近组装一个原子核以观察真空的衰变是可能的。
A nucleus that large cannot be stable, but it might be possible to assemble one next to a vacuum for long enough to observe the decay of the vacuum.
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