Lectures on non-equilibrium effective field theories and fluctuating hydrodynamics

By Paolo Glorioso, Hong Liu. Proceedings of Theoretical Advanced Study Institute Summer School 2017 "Physics at the Fundamental Frontier" — PoS(TASI2017), 2018

248 citations recorded by the source corpus.

We review recent progress in developing effective field theories (EFTs) for non-equilibrium processes at finite temperature, including a new formulation of fluctuating hydrodynamics, and a new proof of the second law of thermodynamics. There are a number of new elements in formulating EFTs for such systems. Firstly, the nature of IR variables is very different from those of a system in equilibrium or near the vacuum. Secondly, while all static properties of an equilibrium system can in principle be extracted from the partition function, there appears no such quantity which can capture all non-equilibrium properties. Thirdly, non-equilibrium processes often involve dissipation, which is notoriously difficult to deal with using an action principle. The purpose of the review is to explain how to address these issues in a pedagogic manner, with fluctuating hydrodynamics as a main example.

Subfields: Atomic and Molecular Physics, and Optics, Biomedical Engineering, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/881fd78dca3aaa89b18a29701332aa2b3f6cd3c3

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In Atomic and Molecular Physics, and Optics

1. Tianci Zhou
2. A. Nahum
3. S. Grozdanov
4. A. Starinets
5. Petar Tadi'c
6. P. Kovtun
7. Matthew Fisher
8. Nicholas Hunter-Jones

In Biomedical Engineering

1. Petar Tadi'c
2. P. Kovtun
3. S. Grozdanov
4. A. Starinets

In Statistical and Nonlinear Physics

1. P. Kovtun
2. A. Starinets
3. S. Grozdanov
4. Petar Tadi'c
5. A. Nahum
6. S. Hartnoll
7. Tianci Zhou
8. Alex Buchel

Citations in the corpus

• The complex life of hydrodynamic modes (2019, methodology): “We hope our results may be of interest for studies of higher-order hydrodynamics necessary for improving the precision of hydrodynamic predictions and also for justifying the construction of the effective field theory of hydrodynamics formulated as a gradient expansion [84–94].”
• A semiclassical ramp in SYK and in gravity (2018, unknown): “For a review see [77].”
• Entanglement Membrane in Chaotic Many-Body Systems (2019, background): “Such symmetries will constrain the effective field theory of the membrane, as well as giving new hydrodynamic modes [68, 69].”