Vacuum Instability

Details Vacuum Instability Vacuum Instability

2004-07-09

arxiv.org/abs/gr-qc/0407038v2

Found.Phys.Lett. 19 (2006) 285-291

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Scientific paper

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 $\Lambda $ as a dynamical effect. This leads to a relation between the change in $\Lambda $ and the line element (action) which is independent of gauge choices and fundamental constants: $d\Lambda ds^{2}=-3$. This implies that the (classical) vacuum is unstable, with implications for particle production.

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