Non-equilibrium Quantum Many-Body Dynamics: Functional Integral Approaches

2011/01/02 by Cédric Bodet, Bodet, Cédric, Matthias Kronenwett +7
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Physics of Superconductivity and Magnetism #Quantum Gases (cond-mat.quant-gas) #Quantum and electron transport phenomena #Quantum many-body systems #Spectroscopy and Quantum Chemical Studies #cond-mat.quant-gas #hep-ph

paper · pdf · doi:10.48550/arxiv.1101.0397

18 pages, 6 figures, v2:lost refs. reinstated

openalex publication_date 2011/01/02 · arxiv created 2011/01/09 · arxiv updated 2015/03/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We discuss functional-integral approaches to far-from-equilibrium quantum many-body dynamics. Specific techniques considered include the two-particle-irreducible effective action and the real-time flow-equation approach. Different applications, including equilibration after a sudden parameter change and non-equilibrium critical phenomena, illustrate the potential of these methods.

Citations

• Non-thermal equilibration of a one-dimensional Fermi gas
• New Method for Calculating the One-Particle Green's Function with Application to the Electron-Gas Problem

Related

• Many-body theory of non-equilibrium systems
• Continuum Approach to Non-equilibrium Quantum Functional Integral
• Performance of wave function and Green's function methods for non-equilibrium many-body dynamics
• Optimal control of many-body non-equilibrium quantum thermodynamics
• Aspects of Non-Equilbrium Quantum Field Theory in Heavy Ion Collisions