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arXiv 1004.4867hep-th
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关于真空能量衰减的几点评论

Comments on the vacuum energy decay

Enrique Álvarez, Roberto Vidal

摘要:

Polyakov最近讨论的de Sitter空间中的{真空能量的\em不稳定性}被认为是存在外部引力场时的一个普遍特征。它与{ \em禁止}(动量守恒)衰变的存在有关,Bros,Epstein和Moschella详细推导了这些衰变。在共形不变的情况下讨论了一些计算,并提出了一个平坦的空间模型。

英文摘要:

The {\em instability of vacuum energy} in de Sitter space as discussed recently by Polyakov is argued to be a generic feature when external gravitational fields are present. It is related to the existence of {\em forbidden} (by momentum conservation) decays derived in some detail by Bros, Epstein and Moschella. Some calculations are discussed in a conformally invariant setting, and a flat space model is presented.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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