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arXiv 1408.0165hep-thhep-ph
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3+1维非相互作用手征流体的二阶配分函数

Second-order partition function of a non-interacting chiral fluid in 3+1 dimensions

Eugenio Megias, Manuel Valle

摘要:

在任意时间无关的引力和规范背景的导数展开中,我们计算了二阶非相互作用手征费米子的配分函数。我们发现需要对真空部分进行Pauli-Villars正则化才能得到一致的结果。利用所得结果讨论了二阶流体力学非耗散本构关系的一些特征。

英文摘要:

We compute the partition function for non-interacting chiral fermions at second order in a derivative expansion of an arbitrary time-independent gravitational and gauge background. We find that Pauli-Villars regularization of the vacuum part is needed to get consistent results. We use our results to discuss some features of the non-dissipative constitutive relations of second order hydrodynamics.

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