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科学巨著《时间简史》(霍金)

时间简史第七章·黑洞不是这么黑的(上)

21 Jan 2022

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我们知道,任何东西都不能从黑洞的事件视界之内逃逸出来,何以黑洞会发射粒子呢?量子理论给我们的回答是,粒子不是从黑洞里面出来的,而是从紧靠黑洞的事件视界的外面的“空”的空间来的!我们可以用以下的方法去理解它:我们以为是“真空”的空间不能是完全空的,因为那就会意味着诸如引力场和电磁场的所有场都必须刚好是零。

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