Vacuum Instability
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- 作者：Paul S. Wesson
- 刊名：Foundations of Physics Letters
- 出版年：2006
- 出版时间：June 2006
- 年：2006
- 卷：19
- 期：3
- 页码：285-291
- 全文大小：864 KB
文摘
Following fresh attempts to resolve the problem of the energy density of the vacuum, we reconsider the case where the cosmological constant is derived from a higher-dimensional version of general relativity, and interpret the gauge-dependence of Λ as a dynamical effect. This leads to a relation between the change in Λ and the line element (action) which is independent of gauge choices and fundamental constants: dΛds2 = −6. This implies that the (classical) vacuum is unstable, with implications for particle production.