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Many-body techniques


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    TechniquesTheoretical & Computational TechniquesMany-body techniques
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  • Approximation methods for many-body systems
    • Bethe-Salpeter equation
    • Cluster expansion
    • Coupled mode theory
    • Discrete dipole approximation
    • Gutzwiller approximation
    • Perturbation theory
    • Random phase approximation
    • Semiclassical methods
    • Semiconductor Bloch equations
    • Variational approach
  • Density matrix methods
  • Diagrammatic methods
  • Duality
  • Effective mass theory
  • Electron-correlation calculations
  • Exact solutions for many-body systems
    • Bethe ansatz
    • Exact diagonalization
  • Fermi liquid theory
  • Green's function methods
    • Coherent potential approximation
    • Nonequilibrium Green's function
  • Landau-Ginzburg-Devonshire theory
  • Luttinger liquid model
  • Mean field theory
    • Cluster methods
    • Dynamical mean field theory
  • Non-Fermi-liquid theory
  • Renormalization group
    • Density matrix renormalization group
    • Functional renormalization group
    • Matrix product states
    • Numerical Renormalization Group
    • Projected entangled pair states
    • Tensor network renormalization
  • Second quantization
  • Slave bosons
  • Tensor network methods
  • Thomas–Fermi model
  • Trial wave functions
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