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词汇 Vacuum decay
分类 英语词汇 英语翻译词典
释义

Vacuum decay

原声例句
Reel知识卷轴

My personal favourite of the Universe, though, is called vacuum decay.

不过， 我个人最喜欢的宇宙称为真空衰变。

英语百科

False vacuum

（重定向自Vacuum decay）
A scalar field φ in a false vacuum. Note that the energy E is higher than that in the true vacuum or ground state, but there is a barrier preventing the field from classically rolling down to the true vacuum. Therefore, the transition to the true vacuum must be stimulated by the creation of high-energy particles or through quantum-mechanical tunneling.
Diagram showing the Higgs boson and top quark masses, which could indicate whether our universe is stable, or a long-lived 'bubble'. The outer dotted line is the current measurement uncertainties; the inner ones show predicted sizes after completion of future physics programs, but their location could be anywhere inside the outer.[1]

In quantum field theory, a false vacuum is a metastable sector of space that appears to be a perturbative vacuum, but is unstable due to instanton effects that may tunnel to a lower energy state. This tunneling can be caused by quantum fluctuations or the creation of high-energy particles. The false vacuum is a local minimum, but not the lowest energy state, even though it may remain stable for some time.
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