期刊
PHYSICAL REVIEW D
卷 80, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.80.066002
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资金
- DOE [DEFG0201ER41195]
We show that in a general class of strongly interacting theories at high temperatures the speed of sound approaches the conformal value c(s)(2) = 1/3 universally from below. This class includes theories holographically dual to a theory of gravity coupled to a single scalar field, representing the operator of the scale anomaly.
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