Effective field theory for hydrodynamics: thermodynamics, and the derivative expansion
High Energy Physics - Theory
2012-08-23 v1 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
Nuclear Theory
Fluid Dynamics
Abstract
We consider the low-energy effective field theory describing the infrared dynamics of non-dissipative fluids. We extend previous work to accommodate conserved charges, and we clarify the matching between field theory variables and thermodynamical ones. We discuss the systematics of the derivative expansion, for which field theory offers a conceptually clear and technically neat scheme. As an example, we compute the correction to the sound-wave dispersion relation coming from a sample second-order term. This formalism forms the basis for a study of anomalies in hydrodynamics via effective field theory, which is initiated in a companion paper.
Keywords
Cite
@article{arxiv.1107.0731,
title = {Effective field theory for hydrodynamics: thermodynamics, and the derivative expansion},
author = {Sergei Dubovsky and Lam Hui and Alberto Nicolis and Dam Thanh Son},
journal= {arXiv preprint arXiv:1107.0731},
year = {2012}
}
Comments
10 pages