科研之友
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摘要
We attempt to calculate the point separated noise kernel for the self-similar Tolman-Bondi metric, using a method similar to that developed by Eftekharzadeh et al. for ultrastatic spacetimes, referring to the work by Page. In the case of formation of a naked singularity, the noise kernel thus obtained is found to be regular except on the Cauchy horizon, where it diverges. The behavior of the noise in the case of the formation of a covered singularity is found to be regular. This result seemingly renders backreaction non-negligible, which causes us to question the stability of the results obtained from the semiclassical treatment of the self-similar Tolman-Bondi metric.
- 出版日期2013-4-30
