Exotic Smoothness in Four Dimensions and Euclidean Quantum Gravity
Exotic Smoothness in Four Dimensions and Euclidean Quantum Gravity
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四维奇异平滑度和欧几里得量子引力
DOI：
10.1142/s0219887811005233
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发表时间：
2009
影响因子：
1.8
通讯作者：
C. Duston
中科院分区：
文献类型：
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作者：
C. Duston
本文计算了欧几里得量子引力中奇异光滑结构的包含对典型观测值的影响。我们在半经典状态下对几个重力自由场作用做了这个，发现结果是相似的，独立于所选择的特定作用。这些是第一个在维度4中类似的结果，我们将其扩展为包括单循环贡献。我们发现这些拓扑特征可以在不需要额外的奇异物理的情况下产生显著的物理结果。
In this paper we calculate the effect of the inclusion of exotic smooth structures on typical observables in Euclidean quantum gravity. We do this in the semiclassical regime for several gravitational free-field actions and find that the results are similar, independent of the particular action that is chosen. These are the first results of their kind in dimension four, which we extend to include one-loop contributions as well. We find these topological features can have physically significant results without the need for additional exotic physics.
自旋流形、爱因斯坦度量和微分拓扑
DOI：
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发表时间：
2002
期刊：
Mathematical Research Letters 9
影响因子：
--
作者：
Masashi Ishida;Claude LeBrun
通讯作者：
Claude LeBrun