TY - JOUR
T1 - Effective field theory for hydrodynamics
T2 - Thermodynamics, and the derivative expansion
AU - Dubovsky, Sergei
AU - Hui, Lam
AU - Nicolis, Alberto
AU - Son, Dam Thanh
PY - 2012/4/26
Y1 - 2012/4/26
N2 - We consider the low-energy effective field theory describing the infrared dynamics of nondissipative 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.
AB - We consider the low-energy effective field theory describing the infrared dynamics of nondissipative 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.
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U2 - 10.1103/PhysRevD.85.085029
DO - 10.1103/PhysRevD.85.085029
M3 - Article
AN - SCOPUS:84860480602
SN - 1550-7998
VL - 85
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 8
M1 - 085029
ER -