科研之友
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摘要
It has been claimed that the electroweak vacuum may be unstable during inflation due to large fluctuations of the order H in the case of a high inflationary scale as suggested by BICEP2. We compute the standard model Higgs effective potential including UV-induced curvature corrections at one- loop level. We find that for a high inflationary scale a large curvature mass is generated due to renormalization group running of nonminimal coupling xi, which either stabilizes the potential against fluctuations for xi(EW) greater than or similar to 6 x 10(-2), or destabilizes it for xi(EW) less than or similar to 2 x 10(-2) when the generated curvature mass is negative. Only in the narrow intermediate region may the effect of the curvature mass be significantly smaller.
- 出版日期2014-11-17
