Anomaly breaking of de Sitter symmetry
msra（2010）
摘要
To one loop order, interacting boson fields on de Sitter space have an
"infrared" anomaly that breaks the de Sitter symmetry for all vacua save the
Euclidian one. The divergence of a symmetry current at point $x$ has a non-zero
contribution at the antipodal point ${\bar x}$.
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关键词
de sitter,quantum cosmology,infrared,de sitter space,high energy physics
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