Leseprobe
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HYDRODYNAMIC SCALES OF INTEGRABLE MANY-BODY SYSTEMS
Herbert Spohn
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World Scientific Publishing Company 
Naturwissenschaften, Medizin, Informatik, Technik / Naturwissenschaften allgemein
Beschreibung
This book provides a broad introduction to integrable systems with many degrees of freedom. Within a much larger orbit, discussed are models such as the classical Toda lattice, Calogero fluid, and Ablowitz-Ladik discretized nonlinear Schrödinger equation. On the quantum mechanical side, featured are the Lieb-Liniger delta-Bose gas and the quantum Toda lattice. As a genuinely novel twist, the study deals with random initial data described by generalized Gibbs ensembles with parameters of slow spatial variation. This is the hydrodynamic scale, in spirit similar to the ballistic Euler scale of nonintegrable simple fluids. While integrable microscopic particle models are very diverse, the central theme of this book is to elucidate their structural similarity on hydrodynamic scales.
Contents:
- Preface
- Overview
- Dynamics of the Classical Toda Lattice:
- Locally Conserved Fields and Their Currents
- Action–Angle Variables, Notions of Integrability
- Scattering Theory
- Static Properties:
- Generalized Gibbs Ensembles
- Lax Matrix Filter and Local GGEs
- Generalized Free Energy
- Lax Density of States, TBA Equation
- Mean-Field Techniques
- Dyson Brownian Motion
- Macroscopic Equation, Law of Large Numbers
- Fluctuation Theory
- Hydrodynamics for Hard Rods
- Hard Rod Fluid
- Hard Rod Lattice
- TBA, Collision Rate Ansatz
- Equations of Generalized Hydrodynamics:
- Average Currents
- Hydrodynamic Equations
- Linearized Hydrodynamics and GGE Spacetime Correlations:
- Equilibrium Spacetime Correlations for Nonintegrable Chains
- GGE Spacetime Correlations for the Toda Lattice
- Domain Wall Initial States
- Toda Fluid:
- Euler Equations
- Generalized Free Energy — Again
- Hydrodynamics of Soliton Gases:
- Soliton Gas of the KdV Equation
- Soliton Gas of the Toda Lattice
- Comparing Soliton- and Particle-Based Hydrodynamics
- Calogero Models:
- Hyperbolic Calogero Model, Charges and Currents
- Scattering Coordinates
- Generalized Free Energy
- Hydrodynamic Equations
- Classical Bethe Equations
- Trigonometric Calogero–Moser Model
- Discretized Nonlinear Schrödinger Equation:
- Continuum Wave Equations
- Ablowitz–Ladik Discretization
- Circular Random Matrices with Pressure Ramp
- Average Currents
- Hydrodynamic Equations
- Modified Korteweg–de Vries Equation
- Hydrodynamics for the Lieb–Liniger δ-Bose Gas:
- Bethe Ansatz
- Bethe Root Densities, Free Energy, TBA Equations
- Charge Currents, Hydrodynamic Equations
- Generic Structure of TBA
- Gaudin Matrix
- Quantum Toda Lattice:
- Integrability, Monodromy Matrix
- Spectral Properties
- GGE and Hydrodynamics
- Beyond the Euler Time Scale:
- General Framework
- Nonintegrable Chains
- Navier–Stokes Equations
- Bibliography
- List of Symbols
- Index
Readership: Theoretical physicists and mathematicians interested in integrable models with many degrees of freedom.
Key Features:
- Self-contained introduction to the hydrodynamics of integrable many-particle systems
- Covers classical and quantum many-body models
- Elucidates common structural features
- 300+ references including many recent contributions
