Second-order partition function of a non-interacting chiral fluid in 3+1 dimensions
High Energy Physics - Theory
2015-06-16 v2 High Energy Physics - Phenomenology
Abstract
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.
Cite
@article{arxiv.1408.0165,
title = {Second-order partition function of a non-interacting chiral fluid in 3+1 dimensions},
author = {Eugenio Megias and Manuel Valle},
journal= {arXiv preprint arXiv:1408.0165},
year = {2015}
}
Comments
27 pages; v2 minor changes in sec. 5 and discussion improved in secs. 6 and 7, references added, version to appear in JHEP