2015/10/31 by Felix M. Haehl, R. Loganayagam, Mukund Rangamani · 5 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Black Holes and Theoretical Physics #Black hole (networking) #Effective field theory #Field (mathematics) #Focus (optics) #Formalism (music) #Quantum Electrodynamics and Casimir Effect #Sigma #cond-mat.stat-mech #gr-qc #hep-th
paper · pdf · doi:10.1007/jhep01(2016)184
31 pages; v2: typos corrected. v3: minor clarifications, published version
openalex publication_date 2016/01/01 · arxiv created 2016/01/29 · arxiv updated 2016/03/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We focus on the question of how relativistic fluid dynamics should be thought of as a Wilsonian effective field theory emerging from Schwinger-Keldysh path integrals. Taking the basic principles of Schwinger-Keldysh formalism seriously, we are led to a series of remarkable statements and conjectures, which we phrase in terms of a broad programme relating relativistic fluid dynamics and topological sigma models. Apart from the intrinsic interest for these ideas from the non-equilibrium field theory viewpoint, we also emphasize its relevance to various fundamental questions in black hole physics.